Motion and Energy: Master the Fundamentals of Physics

Question 1

A car accelerates from rest with a constant acceleration of 5 m/s². Which of the following graphs best represents the relationship between its velocity and time?

Accepted Answer

A straight line with a positive slope

Answer

A straight line with a negative slope

Answer

A parabola opening upwards

Answer

A parabola opening downwards

Question 2

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

Accepted Answer

Fossil fuels

Answer

Hydropower

Answer

Wind

Answer

Geothermal

Question 3

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Temperature

Answer

Volume

Answer

Mass

Question 4

Which of the following is the SI unit of momentum?

Accepted Answer

Kilogram meter per second

Answer

Newton

Answer

Joule

Answer

Meter per second

Question 5

An object with a mass of 'm' is moving at a velocity 'v'. Which of the following expressions represents the kinetic energy (KE) of the object?

Accepted Answer

KE = 1/2 * m * v^2

Answer

KE = m * v

Answer

KE = 1/2 * v^2

Answer

KE = m * v^2

Question 6

A constant force of 10 newtons (N) is applied to a body for 5 seconds. What is the impulse acting on the body?

Accepted Answer

50 N

Answer

2 N

Answer

10 N

Answer

0.5 N

Question 7

Which of the following is NOT a type of potential energy?

Accepted Answer

Kinetic potential energy

Answer

Gravitational potential energy

Answer

Elastic potential energy

Answer

Chemical potential energy

Question 8

A constant force of 100 N acts on a body with a mass of 20 kg at rest. What is the acceleration produced?

Accepted Answer

2 m/s^2

Answer

5 m/s^2

Answer

10 m/s^2

Answer

20 m/s^2

Question 9

Which of the following is the SI unit of energy?

Accepted Answer

Joule

Answer

Newton

Answer

Watt

Answer

Kilogram

Question 10

A car travels at a constant speed of 20 m/s. What is the distance travelled by the car after 5 seconds?

Accepted Answer

100 m

Answer

10 m

Answer

25 m

Answer

50 m

Question 11

Which of the following is NOT a fundamental force in nature?

Accepted Answer

Frictional force

Answer

Gravitational force

Answer

Electromagnetic force

Answer

Nuclear force

Question 12

What is the formula for gravitational potential energy?

Accepted Answer

E = mgh

Answer

E = mc^2

Answer

E = 1/2mv^2

Answer

E = Fd

Question 13

Which of the following energy transformations occurs when a flashlight is turned on?

Accepted Answer

Chemical to light

Answer

Electrical to chemical

Answer

Kinetic to potential

Answer

Thermal to sound

Question 14

What is the SI unit of power?

Accepted Answer

Watt

Answer

Joule

Answer

Newton

Answer

Hertz

Question 15

Which of the following factors affects the momentum of an object?

Accepted Answer

Mass and velocity

Answer

Mass and acceleration

Answer

Velocity and acceleration

Answer

Force and time

Question 16

A car with a mass of 1000 kg experiences a force of 1000 N. What is the acceleration of the car?

Accepted Answer

10 m/s^2

Answer

1 m/s^2

Answer

100 m/s^2

Answer

1000 m/s^2

Question 17

An object moving with a constant velocity has what kind of acceleration?

Accepted Answer

Zero acceleration

Answer

Constant acceleration

Answer

Increasing acceleration

Answer

Decreasing acceleration

Question 18

The mathematical expression for work done by a force is:

Accepted Answer

Force × Distance moved in the direction of force

Answer

Force × Distance moved perpendicular to force

Answer

Force × Time taken

Answer

Force / Distance moved

Question 19

Which of the following is NOT a type of energy?

Accepted Answer

Mass

Answer

Kinetic energy

Answer

Potential energy

Answer

Thermal energy

Question 20

Which unit is used to measure power?

Accepted Answer

Watts

Answer

Newtons

Answer

Joules

Answer

Meters per second

Question 21

Which of the following is NOT one of Newton's laws of motion?

Accepted Answer

Law of conservation of momentum

Answer

Newton's first law

Answer

Newton's second law

Answer

Newton's third law

Question 22

An object is considered to be in equilibrium when:

Accepted Answer

The net force acting on it is zero

Answer

The net torque acting on it is zero

Answer

Its velocity is constant

Answer

Its acceleration is constant

Question 23

Approximately what is the acceleration due to gravity on Earth?

Accepted Answer

9.8 m/s²

Answer

1.6 m/s²

Answer

29.4 m/s²

Answer

0.8 m/s²

Question 24

What unit is used to measure the work done by a force?

Accepted Answer

Joules

Answer

Newtons

Answer

Watts

Answer

Metres

Question 25

In circular motion, what type of acceleration does the object experience?

Accepted Answer

Centripetal

Answer

Zero

Answer

Constant

Answer

Tangential

Question 26

Which form of energy is stored in a stretched spring?

Accepted Answer

Potential energy

Answer

Kinetic energy

Answer

Thermal energy

Answer

Electrical energy

Question 27

Which of the following forces is responsible for keeping the Earth in orbit around the Sun? **(Identify the force)**

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Air resistance

Question 28

Which of the following is a renewable energy source? **(Identify the source)**

Accepted Answer

Wind

Answer

Natural gas

Answer

Coal

Answer

Oil

Question 29

A car has a power output of 100 kW. How much work can the car do in 1 minute? **(Provide the value and unit)**

Accepted Answer

60 MJ

Answer

1 MJ

Answer

6.0 kJ

Answer

600 kJ

Question 30

Which of the following is a vector quantity? **(Specify the type)**

Accepted Answer

Velocity

Answer

Mass

Answer

Time

Answer

Temperature

Question 31

A ball is thrown vertically upwards. At the highest point of its trajectory, which of the following is zero?

Accepted Answer

Velocity

Answer

Acceleration due to gravity

Answer

Kinetic energy

Answer

Potential energy

Question 32

Which of the following is a conservative force: a force that does not depend on the path taken by the object?

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Air resistance

Question 33

A car travels a distance of 100 m in 10 seconds. What is its average speed?

Accepted Answer

10 m/s

Answer

1 m/s

Answer

100 m/s

Answer

1000 m/s

Question 34

What is the unit of power: the rate at which work is done?

Accepted Answer

Watt

Answer

Joule

Answer

Newton

Answer

Kilogram

Question 35

What is the relationship between force, mass, and acceleration, as described by Newton's second law of motion?

Accepted Answer

F = ma

Answer

F = m/a

Answer

a = F/m

Answer

m = F/a

Question 36

Which of the following is an example of a projectile: an object that is thrown or launched into the air and moves along a curved path due to gravity?

Accepted Answer

A ball thrown into the air

Answer

A car driving down a road

Answer

A satellite orbiting the Earth

Answer

A book resting on a table

Question 37

Which of the following is not a form of energy?

Accepted Answer

Momentum

Answer

Kinetic energy

Answer

Gravitational potential energy

Answer

Elastic potential energy

Question 38

The momentum of an object with mass 'm' and velocity 'v' is:

Accepted Answer

Mass × Velocity

Answer

Mass / Velocity

Answer

Velocity / Mass

Answer

Mass - Velocity

Question 39

Which of the following is an example of an elastic collision?

Accepted Answer

A ball bouncing off a wall

Answer

A car crash

Answer

A person falling off a bike

Answer

A balloon popping

Question 40

The conservation of energy principle states that:

Accepted Answer

Energy can be transformed from one form to another

Answer

Energy can be created or destroyed

Answer

Energy is always lost in a system

Answer

Energy is gained in a closed system

Question 41

Which of the following is NOT a scalar quantity?

Accepted Answer

Acceleration

Answer

Speed

Answer

Temperature

Answer

Displacement

Question 42

What is the SI unit of power, which measures the rate at which work is done?

Accepted Answer

Watt

Answer

Joule

Answer

Newton

Answer

Kilogram

Question 43

A force of 50 N acts on a body of mass 10 kg. What is the acceleration produced?

Accepted Answer

5 m/s²

Answer

2.5 m/s²

Answer

7.5 m/s²

Answer

10 m/s²

Question 44

Which of the following is a renewable energy source, meaning it can be replenished naturally?

Accepted Answer

Solar

Answer

Coal

Answer

Natural gas

Answer

Nuclear

Question 45

Which of the following is a form of potential energy, which is stored energy due to position or condition?

Accepted Answer

Gravitational energy

Answer

Kinetic energy

Answer

Thermal energy

Answer

Electrical energy

Question 46

Which of the following is not a type of force?

Accepted Answer

Displacement

Answer

Gravitational force

Answer

Frictional force

Answer

Electrical force

Question 47

Which of the following quantities is conserved in an isolated system?

Accepted Answer

Energy

Answer

Force

Answer

Momentum

Answer

Velocity

Question 48

Which of the following is a vector quantity?

Accepted Answer

Displacement

Answer

Mass

Answer

Temperature

Answer

Volume

Question 49

The rate at which work is done is known as:

Accepted Answer

Power

Answer

Energy

Answer

Force

Answer

Momentum

Question 50

Which of the following will increase the kinetic energy of an object?

Accepted Answer

Increasing its speed

Answer

Increasing its mass

Answer

Increasing its height

Answer

Decreasing its acceleration

Question 51

Which of the following graphs best represents the relationship between the displacement of an object and time for an object moving with constant velocity?

Accepted Answer

A straight line with positive slope

Answer

A straight line with negative slope

Answer

A parabola

Answer

A circle

Question 52

A ball is thrown vertically upwards. Which of the following graphs best represents the variation of its acceleration with time?

Accepted Answer

A straight line with negative slope

Answer

A straight line with positive slope

Answer

A parabola

Answer

A circle

Question 53

In the International System of Units (SI), what is the unit of power?

Accepted Answer

Watt

Answer

Joule

Answer

Newton

Answer

Kilogram

Question 54

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

Accepted Answer

50 km/h

Answer

25 km/h

Answer

75 km/h

Answer

100 km/h

Question 55

What is the acceleration due to gravity on Earth?

Accepted Answer

9.8 m/s²

Answer

19.6 m/s²

Answer

29.4 m/s²

Answer

39.2 m/s²

Question 56

Which of the following is a unit of power?

Accepted Answer

Watt

Answer

Joule

Answer

Newton

Answer

Kilogram