Question 1

Which of the following best describes the particle model of motion?

Accepted Answer

Treats a moving object as if all its mass were concentrated at a single point.

Question 2

A car moves with constant speed. Which motion diagram best represents this scenario?

Accepted Answer

Images are spaced equally apart.

Question 3

Which equation correctly defines average velocity?

Accepted Answer

$$v_{avg} = \frac{\Delta x}{\Delta t}$$

Question 4

A ball is thrown straight up and then falls back down. What is the acceleration at the highest point?

Accepted Answer

$$a = g$$

Question 5

Which of the following is NOT a type of translational motion?

Accepted Answer

Rotational

Question 6

If a sprinter runs 100 m in 10 s, what is their average speed?

Accepted Answer

$$10 	ext{ m/s}$$

Question 7

Which statement about velocity as a vector is correct?

Accepted Answer

Both magnitude and direction of velocity can change.

Question 8

Given $$g = 9.8 	ext{ m/s}^2$$, what is the value of $$g in $$miles/min$$^2$$?

Accepted Answer

$$21.9 	ext{ miles/min}^2$$

Question 9

On a position vs. time graph, what does the slope represent?

Accepted Answer

Velocity

Question 10

A car accelerates from rest to $$20 	ext{ m/s} in$$ $$4 	ext{ s}. $$What is its average acceleration?

Accepted Answer

$$5 	ext{ m/s}^2$$

Question 11

Which formula correctly expresses average acceleration?

Accepted Answer

$$a_{avg} = \frac{\Delta v}{\Delta t}$$

Question 12

A position vs. time graph for two runners, A and B, shows A's line is steeper than B's. What does this indicate?

Accepted Answer

Runner A is faster than B.

Question 13

A ball rolls down a ramp. What is the direction of its acceleration?

Accepted Answer

Down the ramp

Question 14

Which of the following is the correct SI unit for acceleration?

Accepted Answer

$$	ext{m/s}^2$$

Question 15

If the velocity of an object changes from $$5 	ext{ m/s} to$$ $$15 	ext{ m/s} in$$ $$2 	ext{ s}$$, what is the average acceleration?

Accepted Answer

$$2.5 	ext{ m/s}^2$$

Question 16

Which of the following best describes uniform motion?

Accepted Answer

Motion along a straight line at a constant, unvarying speed.

Question 17

A position vs. time graph shows a parabola. What does this indicate about the object's motion?

Accepted Answer

The object is accelerating.

Question 18

Which of the following is true about average speed?

Accepted Answer

It is the total distance traveled divided by total time.

Question 19

A car travels 30 m in 5 s. What is its average speed?

Accepted Answer

$$6 	ext{ m/s}$$

Question 20

Which of the following is NOT a correct SI base unit?

Accepted Answer

cm

Kinematics and Motion: Study Notes for College Physics

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