Master Mechanics: Motion and Forces in Physics for Sixth Form

Question 1

A car with a mass of 1000 kilograms is traveling at a speed of 20 meters per second. What is the car's kinetic energy?

Accepted Answer

100 kilojoules

Answer

10 kilojoules

Answer

1 megajoule

Answer

10 megajoules

Question 2

A car weighing 1000 kg travels at 10 m/s. What is its kinetic energy?

Accepted Answer

50,000 joules

Answer

50 joules

Answer

500,000 joules

Answer

5,000,000 joules

Question 3

A car travels a distance of 100 kilometers in a time of 2 hours. Calculate its average speed.

Accepted Answer

50 km/h

Answer

75 km/h

Answer

100 km/h

Answer

125 km/h

Question 4

A ball is thrown at an angle of 45 degrees to the horizontal. Describe its trajectory.

Accepted Answer

It is a parabola

Answer

It is a straight line

Answer

It is a circle

Answer

It is an ellipse

Question 5

An object is moving at a constant velocity. What is its acceleration?

Accepted Answer

Zero

Answer

Positive

Answer

Negative

Answer

Increasing

Question 6

A car covers a distance of 100 meters in a time interval of 10 seconds. Calculate the velocity of the car.

Accepted Answer

10 m/s

Answer

1 m/s

Answer

100 m/s

Answer

1000 m/s

Question 7

A block with a mass of 2 kg slides down a frictionless inclined plane with a length of 10 m and a height of 5 m. Calculate the block's speed at the bottom of the plane.

Accepted Answer

14.1 m/s

Answer

5 m/s

Answer

10 m/s

Answer

20 m/s

Question 8

A force of 10 N is applied to an object with a mass of 2 kg. What is the acceleration of the object?

Accepted Answer

2 m/s²

Answer

5 m/s²

Answer

10 m/s²

Answer

20 m/s²

Question 9

An object is moving with a constant velocity. Which statement correctly describes its motion?

Accepted Answer

The net force acting on the object is zero.

Answer

The object is accelerating.

Answer

The object is at rest.

Answer

The object's momentum is changing.

Question 10

A block slides down a frictionless inclined plane. Which statement about its motion is true?

Accepted Answer

The block's acceleration is constant.

Answer

The block's velocity is constant.

Answer

The block's kinetic energy is decreasing.

Answer

The block's potential energy is increasing.

Question 11

Which of the following is a unit of energy?

Accepted Answer

Joule

Answer

Newton

Answer

Metre

Answer

Second

Question 12

A ball is thrown into the air. What happens to its momentum as it rises?

Accepted Answer

It remains constant.

Answer

It increases.

Answer

It decreases.

Answer

It becomes zero.

Question 13

Which of the following is an example of a conservative force?

Accepted Answer

Gravitational force

Answer

Friction

Answer

Air resistance

Answer

Tension

Question 14

An object is moving with constant velocity. Which of the following is true about its acceleration?

Accepted Answer

It is zero.

Answer

It is non-zero and constant.

Answer

It is non-zero and changing.

Answer

It cannot be determined from the given information.

Question 15

Which of the following quantities is a vector?

Accepted Answer

Displacement

Answer

Speed

Answer

Energy

Answer

Temperature

Question 16

Which of the following statements about work is accurate?

Accepted Answer

Work is the product of force and displacement in the direction of the force.

Answer

Work is done only when an object moves in the direction of the force applied.

Answer

Work is done only when an object is lifted against gravity.

Answer

Work is a scalar quantity.

Question 17

A block of mass 2 kg is pushed along a frictionless surface by a constant force of 10 N. Calculate the kinetic energy of the block after it has moved a distance of 5 m.

Accepted Answer

50 J

Answer

25 J

Answer

100 J

Answer

200 J

Question 18

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

Accepted Answer

Thermal potential energy

Answer

Gravitational potential energy

Answer

Elastic potential energy

Answer

Chemical potential energy

Question 19

A car travels a distance of 100 kilometers in two hours. Calculate its average velocity.

Accepted Answer

50 km/h

Answer

25 km/h

Answer

100 km/h

Answer

200 km/h

Question 20

A ball is launched vertically upwards with an initial velocity of 10 m/s. Calculate its maximum height.

Accepted Answer

5 m

Answer

2.5 m

Answer

10 m

Answer

20 m

Question 21

A particle moves in a circular path of radius 0.5 meters with a speed of 10 m/s. Calculate its centripetal acceleration.

Accepted Answer

400 m/s²

Answer

200 m/s²

Answer

800 m/s²

Answer

1600 m/s²

Question 22

Which of the following is NOT a form of energy?

Accepted Answer

Mass

Answer

Kinetic energy

Answer

Potential energy

Answer

Heat

Question 23

A force of 100 Newtons is applied to a mass of 20 kilograms. What is the resulting acceleration?

Accepted Answer

5 m/s²

Answer

2 m/s²

Answer

10 m/s²

Answer

20 m/s²

Question 24

A force of 10 N acts on a mass of 2 kg. Determine the acceleration produced.

Accepted Answer

2 m/s²

Answer

5 m/s²

Answer

10 m/s²

Answer

20 m/s²

Question 25

Which of the following is a scalar quantity?

Accepted Answer

Temperature

Answer

Velocity

Answer

Acceleration

Answer

Force

Question 26

Which of the following is a conservative force?

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Air resistance

Question 27

A body is in equilibrium when:

Accepted Answer

The net force acting on it is zero

Answer

The net force acting on it is non-zero

Answer

The force acting on it is equal to its weight

Answer

Force and displacement are perpendicular

Question 28

The work done by a force is given by:

Accepted Answer

Force multiplied by displacement

Answer

Force multiplied by distance

Answer

Displacement multiplied by velocity

Answer

Velocity multiplied by acceleration

Question 29

The momentum of a system remains constant if:

Accepted Answer

No external forces act on it

Answer

The forces acting on it are balanced

Answer

Its total energy is conserved

Answer

Its velocity is constant

Question 30

An object is thrown vertically upwards with a velocity of 10 m/s. What is its velocity at the highest point of its trajectory?

Accepted Answer

0 m/s

Answer

10 m/s

Answer

-10 m/s

Answer

5 m/s

Question 31

A force of 10 N is applied to an object of mass 2 kg. What is the acceleration produced?

Accepted Answer

2 m/s²

Answer

0.5 m/s²

Answer

5 m/s²

Answer

10 m/s²

Question 32

Which of the following is NOT a conservative force?

Accepted Answer

Frictional force

Answer

Gravitational force

Answer

Elastic force

Answer

Tension force

Question 33

Which of the following is a unit of momentum?

Accepted Answer

Kilogram metre per second

Answer

Kilogram per metre

Answer

Kilogram per second

Answer

Newton

Question 34

Which of the following is a vector quantity?

Accepted Answer

Acceleration

Answer

Speed

Answer

Mass

Answer

Energy

Question 35

A 10 kg object is moving at a velocity of 2 m/s. Calculate its momentum.

Accepted Answer

10 kg m/s

Answer

5 kg m/s

Answer

15 kg m/s

Answer

20 kg m/s

Question 36

Which of the following physical quantities is a vector?

Accepted Answer

Velocity

Answer

Length

Answer

Area

Answer

Mass

Question 37

A force of 10 Newtons is exerted on a body for 5 seconds. Calculate the impulse.

Accepted Answer

50 N

Answer

2 N

Answer

5 N

Answer

10 N

Question 38

Which of the following forces is a conservative force?

Accepted Answer

Gravity

Answer

Friction

Answer

Air resistance

Answer

Tension

Question 39

What is the SI unit of work?

Accepted Answer

Joule

Answer

Newton

Answer

Watt

Answer

Kilogram

Question 40

An object is moving with a constant velocity of 10 m/s. What is its acceleration?

Accepted Answer

0 m/s²

Answer

5 m/s²

Answer

10 m/s²

Answer

15 m/s²

Question 41

An object initially moving with a velocity of 5 m/s experiences a uniform acceleration of 2 m/s² for 3 seconds. What is its final velocity?

Accepted Answer

11 m/s

Answer

7 m/s

Answer

15 m/s

Answer

13 m/s

Question 42

A ball is dropped from a height of 10 m above the ground. What is its velocity just before it hits the ground?

Accepted Answer

14 m/s

Answer

10 m/s

Answer

20 m/s

Answer

28 m/s

Question 43

A car is traveling at a steady velocity of 20 m/s. What is its acceleration?

Accepted Answer

0 m/s²

Answer

-10 m/s²

Answer

5 m/s²

Answer

10 m/s²

Question 44

A ball is dropped from a height of 10 m. What is its velocity just before it hits the ground?

Accepted Answer

14 m/s

Answer

20 m/s

Answer

10 m/s

Answer

5 m/s

Question 45

A pendulum of length 1 m oscillates with a period of 2 seconds. Calculate the acceleration due to gravity.

Accepted Answer

9.8 m/s²

Answer

4.9 m/s²

Answer

14.7 m/s²

Question 46

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Mass

Answer

Time

Answer

Temperature

Question 47

Which of the following forces acts in the opposite direction to the motion of an object?

Accepted Answer

Friction

Answer

Tension

Answer

Normal force

Question 48

A car is traveling at a constant speed of 30 m/s. What is the net force acting on the car?

Accepted Answer

0 N

Answer

15 N

Answer

60 N

Answer

30 N

Question 49

Which of the following is the unit of energy?

Accepted Answer

Joule

Answer

Kilogram

Answer

Newton

Answer

Watt

Question 50

Which of the following is a scalar quantity?

Accepted Answer

Mass

Answer

Acceleration

Answer

Displacement

Answer

Velocity

Question 51

A car accelerates uniformly from rest to a speed of 20 meters per second in 5 seconds. What is the car's acceleration?

Accepted Answer

4 m/s²

Answer

0.25 m/s²

Answer

1 m/s²

Answer

100 m/s²

Question 52

A ball is thrown vertically upwards with an initial velocity of 15 meters per second. Ignoring air resistance, what is the maximum height the ball reaches?

Accepted Answer

11.48 m

Answer

7.5 m

Answer

22.96 m

Answer

30 m

Question 53

A 5 kg object experiences a force of 20 Newtons. What is the object's acceleration?

Accepted Answer

4 m/s²

Answer

1 m/s²

Answer

100 m/s²

Answer

0.25 m/s²

Question 54

A 2 kg object is moving at a speed of 4 meters per second. What is the object's kinetic energy?

Accepted Answer

16 J

Answer

2 J

Answer

8 J

Answer

32 J

Question 55

A 10 kg box is lifted vertically by 2 meters. How much work is done against gravity?

Accepted Answer

196 J

Answer

20 J

Answer

98 J

Question 56

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

Accepted Answer

50 Ns

Answer

15 Ns

Answer

10 Ns

Answer

2 Ns

Question 57

A 1000 kg car is travelling at 20 meters per second. The brakes are applied, and the car comes to a stop in 5 seconds. What is the average braking force acting on the car?

Accepted Answer

-4000 N

Answer

1000 N

Answer

4000 N

Answer

2000 N

Question 58

A ball is thrown horizontally from a cliff with an initial velocity of 10 meters per second. If the cliff is 20 meters high, how long does it take for the ball to hit the ground? (Ignore air resistance)

Accepted Answer

2 seconds

Answer

4 seconds

Answer

1 second

Question 59

A satellite orbits the Earth in a circular path. Which of the following statements is TRUE about the satellite's motion?

Accepted Answer

The satellite's velocity is constant in magnitude but changing in direction.

Answer

The satellite's velocity is constant in both magnitude and direction.

Answer

The satellite's velocity is changing in both magnitude and direction.

Question 60

A car accelerates uniformly from rest to a speed of 20 meters per second in 5 seconds. What is the acceleration of the car?

Accepted Answer

4 m/s²

Answer

0.25 m/s²

Answer

100 m/s²

Answer

1 m/s²

Question 61

A 5 kg object moves at a constant velocity of 3 m/s. What is the net force acting on the object?

Accepted Answer

0 N

Answer

5 N

Answer

15 N

Answer

3 N

Question 62

A 500 g ball is thrown horizontally at 10 m/s. It hits a wall and bounces back at 5 m/s. What is the change in momentum of the ball?

Accepted Answer

7.5 kg m/s

Answer

10 kg m/s

Answer

2.5 kg m/s

Answer

5 kg m/s

Question 63

A ball is thrown straight up with a speed of 10 m/s. What is its velocity after 1 second?

Accepted Answer

0 m/s

Answer

20 m/s

Answer

10 m/s

Answer

-10 m/s

Question 64

A car with a mass of 1000 kg travels at a speed of 20 m/s. What is its kinetic energy?

Accepted Answer

200 kJ

Answer

400 kJ

Answer

100 kJ

Answer

50 kJ