Motion in One Dimension: Master Kinematics and Dynamics

Question 1

A car starts from rest and accelerates uniformly to a speed of 50 km/h in 10 seconds. What is the car's acceleration?

Accepted Answer

1.4 m/s²

Answer

0.14 m/s²

Answer

14 m/s²

Answer

50 m/s²

Question 2

A projectile is launched vertically upward with an initial velocity of 15 m/s. Calculate the maximum height it will reach.

Accepted Answer

11.25 m

Answer

5.625 m

Answer

22.5 m

Answer

45 m

Question 3

Which of the following physical quantities is a vector?

Accepted Answer

Velocity

Answer

Mass

Answer

Speed

Answer

Temperature

Question 4

Which of the following units is used to measure acceleration?

Accepted Answer

m/s²

Answer

m

Answer

m/s

Answer

km/h

Question 5

Which of the following graphs represents the relationship between displacement (s) and time (t) for an object moving with constant acceleration?

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 6

Which equation correctly describes the relationship between velocity (v), acceleration (a), and time (t) for an object moving with constant acceleration?

Accepted Answer

v = u + at

Answer

v = u + at^2

Answer

v = u - at^2

Answer

v = u - at

Question 7

What is the SI unit of force?

Accepted Answer

Newton

Answer

Joule

Answer

Watt

Answer

Ampere

Question 8

Which of the following is an example of projectile motion?

Accepted Answer

A ball thrown into the air

Answer

A car moving along a straight road

Answer

A pendulum swinging

Answer

A person jumping up and down

Question 9

What is the vertical velocity of a projectile at its maximum height?

Accepted Answer

Zero

Answer

Positive

Answer

Negative

Answer

Cannot be determined

Question 10

Which of the following factors does NOT affect the range of a projectile?

Accepted Answer

Mass of the projectile

Answer

Initial velocity

Answer

Angle of projection

Answer

Air resistance

Question 11

The kinetic energy of a body of mass (m) moving with velocity (v) is:

Accepted Answer

1/2 * m * v^2

Answer

1/2 * m * v

Answer

m * v

Answer

2 * m * v

Question 12

An object moving with constant velocity has:

Accepted Answer

Zero acceleration

Answer

Non-zero acceleration

Answer

Varying velocity

Answer

Zero displacement

Question 13

The equation of motion that relates displacement, initial velocity, acceleration, and time is:

Accepted Answer

s = ut + 0.5at²

Answer

v = u + at

Answer

a = v - u/t

Answer

F = ma

Question 14

The force required to keep an object in equilibrium is:

Accepted Answer

Equal and opposite to the weight of the object

Answer

Equal to the weight of the object

Answer

Greater than the weight of the object

Answer

Less than the weight of the object

Question 15

A car accelerates uniformly from rest to a velocity of 20 m/s in 5 seconds. Calculate its acceleration:

Accepted Answer

4 m/s²

Answer

2 m/s²

Answer

8 m/s²

Answer

10 m/s²

Question 16

Which of the following is the unit of acceleration in the International System of Units (SI)?

Accepted Answer

Metre per second squared (m/s²)

Answer

Metre per second (m/s)

Answer

Newton (N)

Answer

Kilogram (kg)

Question 17

The graph of velocity-time for an object moving with uniform acceleration is a:

Accepted Answer

Straight line

Answer

Parabola

Answer

Circle

Answer

Ellipse

Question 18

An object moving at a constant velocity travels a distance of 200 meters in 10 seconds. Calculate its velocity.

Accepted Answer

20 m/s

Answer

40 m/s

Answer

60 m/s

Answer

80 m/s

Question 19

Which of the following is a vector quantity?

Accepted Answer

Displacement

Answer

Speed

Answer

Temperature

Answer

Volume

Question 20

A particle moves in a straight line with a constant acceleration. Choose the graph that best represents its velocity-time graph.

Accepted Answer

A diagonal line with a positive slope

Answer

A horizontal line

Answer

A diagonal line with a negative slope

Answer

A parabolic curve

Question 21

A force of 25 N is applied to a 6 kg block resting on a frictionless surface. Calculate the work done by the force when the block moves 12 meters.

Accepted Answer

240 J

Answer

120 J

Answer

360 J

Answer

480 J

Question 22

An object's displacement is the:

Accepted Answer

Straight-line distance from the object's initial to final position

Answer

Total distance traveled by the object

Answer

Rate at which the object's velocity changes

Answer

Time taken for the object to move from one position to another

Question 23

Which of the following is the SI unit of acceleration?

Accepted Answer

m/s²

Answer

m

Answer

km/h

Answer

h/m

Question 24

A car travels at a constant speed of 20 m/s for 10 seconds. What is the car's acceleration?

Accepted Answer

0 m/s²

Answer

2 m/s²

Answer

10 m/s²

Answer

20 m/s²

Question 25

Which of the following is a vector quantity?

Accepted Answer

Displacement

Answer

Speed

Answer

Time

Question 26

Which of the following is the force that opposes the motion of an object through a fluid?

Accepted Answer

Drag

Answer

Friction

Answer

Gravity

Answer

Tension

Question 27

The acceleration due to gravity on Earth is approximately:

Accepted Answer

9.8 m/s²

Answer

10 m/s²

Answer

100 m/s²

Answer

1000 m/s²

Question 28

Which of the following is a projectile?

Accepted Answer

A ball thrown horizontally

Answer

A car moving on a straight road

Answer

A satellite orbiting the Earth

Answer

A person walking

Question 29

The range of a projectile is:

Accepted Answer

The maximum horizontal distance traveled by the projectile

Answer

The maximum height reached by the projectile

Question 30

A car starts from rest and accelerates uniformly at a rate of 2 m/s². Calculate its velocity after 5 seconds.

Accepted Answer

10 m/s

Answer

5 m/s

Answer

15 m/s

Answer

20 m/s

Question 31

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 32

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

Accepted Answer

2 m/s²

Answer

5 m/s²

Answer

10 m/s²

Answer

20 m/s²

Question 33

A particle moves in a straight line with a velocity that varies with time as v = t³ - 2t. Calculate its acceleration at t = 2 s.

Accepted Answer

8 m/s²

Answer

4 m/s²

Answer

12 m/s²

Answer

16 m/s²

Question 34

A particle moves in a straight line with a velocity-time graph described by v = 2t + 1. What is the acceleration of the particle?

Accepted Answer

2 m/s²

Answer

1 m/s²

Answer

3 m/s²

Answer

4 m/s²

Question 35

A ball is dropped from a height of 10 meters. What is the ball's velocity just before hitting the ground?

Accepted Answer

19.6 m/s

Answer

9.8 m/s

Answer

14 m/s

Answer

28 m/s

Question 36

Impulse is defined as:

Accepted Answer

Force multiplied by time

Answer

Force multiplied by velocity

Answer

Velocity multiplied by time

Answer

Force multiplied by displacement

Question 37

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

Accepted Answer

10 m/s²

Answer

5 m/s²

Answer

20 m/s²

Answer

40 m/s²

Question 38

Identify the SI unit of acceleration.

Accepted Answer

m/s^2

Answer

m/s

Answer

km/h

Answer

N

Question 39

Which of the following is not a type of force?

Accepted Answer

Displacement

Answer

Gravitational force

Answer

Frictional force

Answer

Magnetic force

Question 40

Two objects of masses 2 kg and 3 kg are moving in the same direction with velocities of 4 m/s and 6 m/s, respectively. What is the total momentum (in kg m/s) of the system?

Accepted Answer

14

Answer

10

Answer

18

Answer

22

Question 41

A force of 10 Newtons is applied to an object with a mass of 2 kilograms. Calculate the object's acceleration.

Accepted Answer

2 m/s²

Answer

5 m/s²

Answer

10 m/s²

Answer

20 m/s²

Question 42

A car travels 200 meters in 10 seconds. If it then decelerates at a constant rate of 2 m/s², determine the total distance it travels before coming to a stop.

Accepted Answer

240 m

Answer

220 m

Answer

260 m

Answer

280 m

Question 43

A simple harmonic oscillator has a period of 0.5 s. What is its frequency?

Accepted Answer

2 Hz

Answer

1 Hz

Answer

3 Hz

Answer

4 Hz

Question 44

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

Accepted Answer

Frictional force

Answer

Gravitational force

Answer

Electromagnetic force

Answer

Strong nuclear force

Question 45

An object is moving in a circular path with a constant speed. What is its acceleration?

Accepted Answer

Directed towards the centre of the circle (centripetal)

Answer

Zero

Answer

Directed away from the centre of the circle (centrifugal)

Answer

Tangential to the circle

Question 46

What is the SI unit of acceleration?

Accepted Answer

m/s²

Answer

m/s

Answer

km/h

Answer

mph

Question 47

Which of the following is a vector quantity?

Accepted Answer

Displacement

Answer

Mass

Answer

Speed

Answer

Time

Question 48

Which of the following is the unit of acceleration?

Accepted Answer

m/s²

Answer

km/h

Answer

m/s