Question 1

Which type of motion is best represented by the path of a satellite orbiting the Earth, as shown in the provided image?

Accepted Answer

Circular motion

Question 2

A runner starts at $$x_i = 0 m $$and finishes at $$x_f = 100 m in$$ $$t_f - t_i = 10 s. $$What is the runner's average velocity?

Accepted Answer

$$10\ \mathrm{m/s}$$

Question 3

A car moves from $$x_i = 20 km to$$ $$x_f = -10 km in 30 $$minutes. What is the displacement?

Accepted Answer

$$-30\ \mathrm{km}$$

Question 4

Which of the following best describes the difference between distance and displacement?

Accepted Answer

Distance is a scalar and displacement is a vector.

Question 5

A student walks from $$x = 0 m to$$ $$x = 40 m$$, then back to $$x = 10 m. $$What is the total distance traveled and the displacement?

Accepted Answer

Distance = $$70 m$$, Displacement = $$-30 m$$

Question 6

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

Accepted Answer

$$\mathrm{m/s}$$

Question 7

A measurement is recorded as $$2.750 cm. $$How many significant figures does this value have?

Accepted Answer

4

Question 8

Convert $$65.0$$ mph to m/s using the conversion $$1\ \mathrm{mph} = 0.447\ \mathrm{m/s}.$$

Accepted Answer

$$29.1\ \mathrm{m/s}$$

Question 9

A student’s position is measured at $$x_i = 0 m at$$ $$t_i = 0$$ min and $$x_f = 200 m at$$ $$t_f = 4$$ min. What is the average velocity?

Accepted Answer

$$50\ \mathrm{m/min}$$

Question 10

Which of the following prefixes represents $$10^{-6}$$?

Accepted Answer

micro-

Question 11

A ball is thrown and follows a curved path before hitting the ground. What type of motion is this?

Accepted Answer

Projectile motion

Question 12

If a car’s position vs. time graph has a negative slope, what does this indicate?

Accepted Answer

The car is moving in the negative direction.

Question 13

A caliper reads $$15.57 mm $$with a precision of $$0.01 mm. $$What is the correct way to report this measurement?

Accepted Answer

$$15.57 \pm 0.01 mm$$

Question 14

A student walks $$120 m in$$ $$2$$ min, then $$60 m in$$ $$1$$ min. What is the average velocity for the entire trip?

Accepted Answer

$$60\ \mathrm{m/min}$$

Question 15

Which of the following is NOT a vector quantity?

Accepted Answer

Distance

Question 16

A Greenland shark grows from $$1 ft to$$ $$15 ft at a $$rate of $$1.0 cm/yr. $$How many years did it take to reach this length? ($$1 ft$$ $$= 30.48 cm)$$

Accepted Answer

$$426.72$$ years

Question 17

Which of the following best describes the slope of a position vs. time graph?

Accepted Answer

Average velocity

Question 18

A dust particle settles to the floor at constant speed. Which motion diagram best represents this?

Accepted Answer

Evenly spaced dots

Question 19

Which of the following is the correct scientific notation for $$0.00000234 s$$?

Accepted Answer

$$2.34 	imes 10$$^{-6}$$ s

Question 20

A skateboarder rolls down the sidewalk in a straight line. Which type of motion is this?

Accepted Answer

Straight-line (linear) motion

Chapter 1: Representing Motion – Foundations of Kinematics

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