Motion

Question 1

What is motion in physics?

Answer 1

Motion is the change in position of an object with respect to time.

Question 2

True or False: An object can be in motion even if it is not changing its speed.

Answer 2

True

Question 3

Fill in the blank: The unit of velocity is _____ .

Answer 3

meters per second (m/s)

Question 4

What does acceleration refer to?

Answer 4

Acceleration refers to the rate of change of velocity of an object.

Question 5

Multiple Choice: Which of the following is a vector quantity? A) Speed B) Distance C) Velocity D) Mass

Answer 5

C) Velocity

Question 6

What is the formula for calculating average speed?

Answer 6

Average speed = total distance / total time

Question 7

True or False: Speed is a scalar quantity.

Answer 7

True

Question 8

What is the difference between distance and displacement?

Answer 8

Distance is the total path length traveled, while displacement is the shortest path from the initial to the final position.

Question 9

Fill in the blank: The acceleration due to gravity is approximately _____ m/s².

Answer 9

9.81

Question 10

Multiple Choice: Which equation represents the second law of motion? A) F = ma B) v = u + at C) s = ut + 1/2 at² D) All of the above

Answer 10

D) All of the above

Question 11

What does the term ‘uniform motion’ mean?

Answer 11

Uniform motion means moving at a constant speed in a straight line.

Question 12

True or False: An object in free fall experiences constant acceleration.

Answer 12

True

Question 13

What is the formula for calculating displacement in uniformly accelerated motion?

Answer 13

s = ut + 1/2 at²

Question 14

Fill in the blank: The slope of a distance-time graph represents _____ .

Answer 14

speed

Question 15

Multiple Choice: What does a horizontal line on a velocity-time graph indicate? A) Constant speed B) Acceleration C) Deceleration D) No motion

Answer 15

A) Constant speed

Question 16

What is the relationship between speed and velocity?

Answer 16

Speed is the magnitude of velocity; velocity includes direction.

Question 17

True or False: A negative acceleration indicates a decrease in speed.

Answer 17

True

Question 18

Fill in the blank: The area under a velocity-time graph represents _____ .

Answer 18

displacement

Question 19

What is instantaneous speed?

Answer 19

Instantaneous speed is the speed of an object at a specific moment in time.

Question 20

Multiple Choice: Which of the following is true about an object in free fall? A) It experiences no acceleration B) It experiences constant acceleration C) It moves with uniform speed D) It does not fall straight down

Answer 20

B) It experiences constant acceleration

Question 21

What is the significance of the gradient on a velocity-time graph?

Answer 21

The gradient represents acceleration.

Question 22

True or False: Deceleration is a term used to describe negative acceleration.

Answer 22

True

Question 23

Fill in the blank: An object thrown upwards will eventually _____ due to gravity.

Answer 23

come back down

Question 24

What is the effect of air resistance on falling objects?

Answer 24

Air resistance reduces the acceleration and can lead to terminal velocity.

Question 25

Multiple Choice: What does terminal velocity depend on? A) Mass B) Shape C) Surface area D) All of the above

Answer 25

D) All of the above