Kinematics

Question 1

What is kinematics?

Answer 1

The branch of physics that studies the motion of objects without considering the forces that cause the motion.

Question 2

What is the difference between distance and displacement?

Answer 2

Distance is the total length of the path traveled, while displacement is the change in position from the starting point to the final point.

Question 3

What is the formula for average speed?

Answer 3

Average speed = total distance / total time

Question 4

What is the formula for velocity?

Answer 4

Velocity = displacement / time

Question 5

True or false: Acceleration is a vector quantity.

Answer 5

True

Question 6

What is the formula for acceleration?

Answer 6

Acceleration = change in velocity / time taken

Question 7

What is the difference between uniform motion and uniformly accelerated motion?

Answer 7

Uniform motion has constant speed, while uniformly accelerated motion has constant acceleration.

Question 8

What is the formula for final velocity in uniformly accelerated motion?

Answer 8

Final velocity = initial velocity + (acceleration * time)

Question 9

What is the equation of motion for an object in uniformly accelerated motion?

Answer 9

s = ut + (1/2)at^2

Question 10

What is the formula for the time taken for an object to reach a certain velocity in uniformly accelerated motion?

Answer 10

Time taken = (final velocity - initial velocity) / acceleration

Question 11

What is the formula for the distance traveled by an object in uniformly accelerated motion?

Answer 11

Distance traveled = (initial velocity * time) + (1/2) * acceleration * time^2

Question 12

What is the slope of a velocity-time graph?

Answer 12

Acceleration

Question 13

What is the area under a velocity-time graph?

Answer 13

Displacement

Question 14

What is the slope of a displacement-time graph?

Answer 14

Velocity

Question 15

What is the area under a displacement-time graph?

Answer 15

Distance traveled

Question 16

What is the difference between speed and velocity?

Answer 16

Speed is a scalar quantity that only indicates how fast something is moving, while velocity is a vector quantity that includes both speed and direction.

Question 17

What is the formula for instantaneous speed?

Answer 17

Instantaneous speed = lim (Δs / Δt) as Δt approaches 0

Question 18

What is the formula for instantaneous velocity?

Answer 18

Instantaneous velocity = lim (Δs / Δt) as Δt approaches 0, with direction

Question 19

What is the difference between average speed and instantaneous speed?

Answer 19

Average speed is the total distance traveled divided by the total time taken, while instantaneous speed is the speed at a particular instant.

Question 20

What is the difference between average velocity and instantaneous velocity?

Answer 20

Average velocity is the total displacement divided by the total time taken, while instantaneous velocity is the velocity at a particular instant.

Question 21

What is the formula for acceleration due to gravity near the surface of the Earth?

Answer 21

Acceleration due to gravity = 9.81 m/s^2

Question 22

What is free fall?

Answer 22

The motion of an object falling under the influence of gravity without any other forces acting on it.

Question 23

What is the formula for the time taken for an object to fall freely from a certain height?

Answer 23

Time taken = sqrt(2h / g), where h is the height and g is the acceleration due to gravity

Question 24

What is terminal velocity?

Answer 24

The constant maximum velocity reached by an object falling through a fluid due to air resistance balancing the force of gravity.