Motion and Energy: Interactive Learning Quizzes for Year 10 Science

Question 1

A ball is thrown vertically upward. As it moves through the air, what happens to its potential and kinetic energy?

Accepted Answer

Potential energy decreases, kinetic energy increases

Answer

Potential energy increases, kinetic energy decreases

Answer

Both potential and kinetic energy remain constant

Answer

Potential energy increases, kinetic energy remains constant

Question 2

A girl weighing 50 kg runs at 3 m/s towards a stationary boy weighing 20 kg. After colliding, they fall together. What's their combined velocity immediately after the collision?

Accepted Answer

2.14 m/s

Answer

0 m/s

Answer

1 m/s

Answer

2 m/s

Question 3

Which statement accurately describes the relationship between velocity and acceleration?

Accepted Answer

Acceleration is the rate of change of velocity.

Answer

Velocity is the rate of change of acceleration.

Answer

Velocity and acceleration are independent of each other.

Answer

Velocity is inversely proportional to acceleration.

Question 4

What is power, and how does it relate to energy and time? Provide an example of a real-world situation where power is crucial.

Accepted Answer

Power is the rate at which energy is transferred or transformed, measured in watts (W).

Answer

Power is the total energy an object has, measured in joules (J).

Answer

Power is how fast an object is moving, measured in meters per second (m/s).

Answer

Power is the force applied to an object, measured in newtons (N).

Question 5

Which option is NOT a valid form of energy?

Accepted Answer

Velocity

Answer

Kinetic energy

Answer

Potential energy

Answer

Heat energy

Question 6

Which of the following statements accurately describes the law of conservation of energy?

Accepted Answer

Energy can neither be created nor destroyed.

Answer

Energy can be created but cannot be destroyed.

Answer

Energy can be destroyed but cannot be created.

Answer

Energy can be both created and destroyed.

Question 7

When a flashlight is turned on, what type of energy transformation takes place?

Accepted Answer

Electrical energy to light energy

Answer

Light energy to electrical energy

Answer

Chemical energy to electrical energy

Answer

Thermal energy to electrical energy

Question 8

Which of the following is not a form of energy?

Accepted Answer

Force of gravity

Answer

Kinetic energy

Answer

Potential energy

Answer

Thermal energy

Question 9

When a force is applied to an object, what happens to its velocity?

Accepted Answer

Increases

Answer

Decreases

Answer

Remains constant

Answer

Changes direction

Question 10

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Speed

Answer

Mass

Answer

Temperature

Question 11

What is the work done when an object moves along a circular path?

Accepted Answer

Zero

Answer

Positive

Answer

Negative

Answer

Cannot be determined

Question 12

Which of the following is the SI unit of energy?

Accepted Answer

Joule

Answer

Newton

Answer

Watt

Answer

Kilogram

Question 13

When a car's brakes are applied, its kinetic energy is primarily converted into:

Accepted Answer

Heat energy

Answer

Potential energy

Answer

Electrical energy

Answer

Sound energy

Question 14

Which of the following is a sustainable energy source that can be replenished naturally?

Accepted Answer

Solar power

Answer

Fossil fuels

Answer

Nuclear power

Answer

Natural gas

Question 15

Which of the following is a vector quantity, meaning it has both magnitude and direction?

Accepted Answer

Force

Answer

Mass

Answer

Temperature

Answer

Distance

Question 16

An object moving at a constant speed of 20 m/s covers a distance of 100 m. What is its acceleration? (Unit: Motion and Energy)

Accepted Answer

0 m/s²

Answer

10 m/s²

Answer

20 m/s²

Answer

40 m/s²

Question 17

Which type of energy is possessed by an object in motion? (Unit: Motion and Energy)

Accepted Answer

Kinetic energy

Answer

Potential energy

Answer

Electrical energy

Answer

Chemical energy

Question 18

A car accelerates uniformly from rest to a velocity of 30 m/s in 5 seconds. What is its acceleration? (Unit: Motion and Energy)

Accepted Answer

10 m/s²

Answer

6 m/s²

Answer

15 m/s²

Answer

30 m/s²

Question 19

Which of the following is a vector quantity? (A vector quantity has both magnitude and direction.)

Accepted Answer

Velocity

Answer

Mass

Answer

Temperature

Answer

Time

Question 20

An object is thrown vertically upward with an initial velocity of 10 meters per second. What is its velocity at the highest point of its trajectory?

Accepted Answer

0 meters per second

Answer

10 meters per second

Answer

20 meters per second

Answer

-10 meters per second

Question 21

The law of conservation of energy states that:

Accepted Answer

Energy cannot be created or destroyed, only changed from one form to another.

Answer

Energy can be created but not destroyed.

Answer

Energy can be destroyed but not created.

Answer

Energy can be both created and destroyed.

Question 22

A force of 10 Newtons is applied to an object for 5 seconds. What is the impulse exerted on the object?

Accepted Answer

50 Newtons

Answer

5 Newtons

Answer

10 Newtons

Answer

100 Newtons

Question 23

The efficiency of a machine is defined as:

Accepted Answer

Output energy / Input energy

Answer

Input energy / Output energy

Answer

Output energy - Input energy

Answer

Input energy + Output energy

Question 24

Which of the following quantities only has magnitude, but no direction?

Accepted Answer

Displacement

Answer

Velocity

Answer

Acceleration

Answer

Force

Question 25

A car travels 100 km in 2 hours. Calculate its average speed.

Accepted Answer

50 km/h

Answer

25 km/h

Answer

100 km/h

Answer

200 km/h

Question 26

When a ball is thrown into the air, it gains kinetic energy as it rises and loses potential energy. At its highest point, which form of energy does it have?

Accepted Answer

Only potential energy

Answer

Only kinetic energy

Answer

Both kinetic and potential energy

Answer

Neither kinetic nor potential energy

Question 27

A simple machine that makes work easier by changing the direction and magnitude of a force is called a:

Accepted Answer

Lever

Answer

Pulley

Answer

Wheel and axle

Answer

Inclined plane

Question 28

Which of the following is the SI unit of power?

Accepted Answer

Watt

Answer

Newton

Answer

Joule

Answer

Volt

Question 29

What is the SI unit of speed?

Accepted Answer

m/s

Answer

km/h

Answer

mph

Question 30

Which of the following is an example of acceleration?

Accepted Answer

A ball thrown vertically upwards

Answer

A car traveling at a constant speed

Answer

A book resting on a table

Question 31

Calculate the kinetic energy of a 2 kg object moving at 10 m/s.

Accepted Answer

100 J

Answer

50 J

Answer

200 J

Question 32

Which of the following is a renewable energy source?

Accepted Answer

Wind energy

Answer

Fossil fuels

Answer

Coal

Question 33

Which of the following is a conservative force?

Accepted Answer

Gravity

Answer

Friction

Answer

Air resistance

Question 34

Which force acts towards the center of circular motion?

Accepted Answer

Centripetal force

Answer

Parallel force

Answer

Centrifugal force

Answer

Perpendicular force

Question 35

What is the key difference between speed and velocity?

Accepted Answer

Speed is a scalar quantity, while velocity is a vector quantity.

Answer

Speed is the rate of change of distance, while velocity is the rate of change of displacement.

Answer

Speed can be negative, while velocity cannot.

Answer

Speed is always greater than velocity.

Question 36

Which of the following is NOT a form of kinetic energy?

Accepted Answer

Potential energy stored in a spring

Answer

Energy of motion

Answer

Energy of a moving object

Answer

Energy of a flowing river

Question 37

At the highest point of a vertically thrown object's trajectory, which of the following is zero?

Accepted Answer

Velocity

Answer

Acceleration due to gravity

Answer

Kinetic energy

Answer

Potential energy

Question 38

Which of the following is a renewable source of energy?

Accepted Answer

Solar energy

Answer

Coal

Answer

Natural gas

Answer

Nuclear energy

Question 39

Which of the following is NOT a type of friction?

Accepted Answer

Magnetic friction

Answer

Static friction

Answer

Sliding friction

Answer

Rolling friction

Question 40

A ball is thrown horizontally with a velocity of 10 m/s. What is its vertical velocity after one second?

Accepted Answer

0 m/s

Answer

5 m/s

Answer

10 m/s

Answer

15 m/s

Question 41

An object is projected vertically upwards. At the highest point of its trajectory, its velocity is:

Accepted Answer

Zero

Answer

Maximum

Answer

Minimum

Answer

Constant

Question 42

The efficiency of a heat engine is calculated as the ratio of:

Accepted Answer

Work output to heat input

Answer

Heat input to work output

Answer

Heat output to work input

Answer

Work output to heat output

Question 43

Which gas is primarily responsible for trapping heat in the Earth's atmosphere?

Accepted Answer

Carbon dioxide

Answer

Oxygen

Answer

Nitrogen

Answer

Methane

Question 44

An object moving at a constant speed of 10 m/s does not have acceleration.

Accepted Answer

False

Answer

True

Question 45

Which of the following is a measure of how fast an object is moving and in which direction?

Accepted Answer

Velocity

Answer

Speed

Answer

Acceleration

Question 46

At the highest point of its trajectory, an object thrown vertically upwards has:

Accepted Answer

Zero speed and zero acceleration

Answer

Zero speed and non-zero acceleration

Answer

Non-zero speed and zero acceleration

Question 47

When an object is falling freely under the influence of gravity, its acceleration is:

Accepted Answer

Independent of its mass

Answer

Proportional to its mass

Answer

Inversely proportional to its mass

Question 48

Which of the following is a non-renewable energy source?

Accepted Answer

Fossil fuels

Answer

Wind energy

Answer

Solar energy

Question 49

Which factors affect the acceleration of an object?

Accepted Answer

Both mass and force

Answer

Mass

Answer

Force

Question 50

An object is traveling at a steady rate of 10 meters per second northwards. This rate is expressed in SI units as:

Accepted Answer

10 m/s

Answer

5 m/s

Answer

10 m/s^2

Answer

0 m/s

Question 51

A ball is thrown upwards vertically. At its maximum height, its velocity is:

Accepted Answer

Zero

Answer

Maximum positive

Answer

Constant

Answer

Maximum negative

Question 52

The energy stored in a rubber band that has been stretched is known as:

Accepted Answer

Elastic potential energy

Answer

Gravitational potential energy

Answer

Kinetic energy

Question 53

In the context of a closed system, energy is:

Accepted Answer

Transformable but neither created nor destroyed

Answer

Destroyable but not transformable

Answer

Both created and destroyed

Answer

Creatable but not transformable

Question 54

Which of the following is an example of a renewable energy source?

Accepted Answer

Solar energy

Answer

Natural gas

Answer

Nuclear energy

Answer

Coal

Question 55

The acceleration experienced by an object in free fall near the surface of the Earth is approximately:

Accepted Answer

9.8 m/s^2

Answer

4.9 m/s^2

Answer

1.6 m/s^2

Answer

19.6 m/s^2

Question 56

A vehicle travels a distance of 100 kilometers in 2 hours. Its average speed is:

Accepted Answer

50 km/h

Answer

100 km/h

Answer

75 km/h

Answer

25 km/h

Question 57

The kinetic energy of an object is directly proportional to:

Accepted Answer

The square of its speed

Answer

Its mass

Answer

Its momentum

Answer

Its height above the ground

Question 58

An object with constant velocity has:

Accepted Answer

Constant speed and direction of motion

Answer

Changing speed but constant direction of motion

Answer

Constant speed but changing direction of motion

Answer

Changing speed and direction of motion

Question 59

Which of the following is not a unit of energy?

Accepted Answer

Newton

Answer

Calorie

Answer

Electronvolt

Answer

Joule

Question 60

As a car accelerates from rest, the force acting on it is:

Accepted Answer

Greater than the frictional force

Answer

Equal to the frictional force

Answer

Less than the frictional force

Answer

Zero

Question 61

Which energy source is renewable?

Accepted Answer

Solar energy

Answer

Natural gas

Answer

Fossil fuels

Answer

Nuclear energy

Question 62

A projectile is fired horizontally. Its acceleration is:

Accepted Answer

Only due to gravity (downward)

Answer

Only due to air resistance (backward)

Answer

In both the horizontal and vertical directions

Question 63

The efficiency of a machine is calculated as:

Accepted Answer

Output energy / Input energy

Answer

Input energy / Output energy

Answer

(Output energy - Input energy) / Output energy

Answer

(Input energy - Output energy) / Input energy

Question 64

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Temperature

Answer

Time

Answer

Mass