Question 1

Which of the following is a vector quantity?

Accepted Answer

Displacement

Question 2

A car travels 100 m east, then 60 m west. What is the car’s displacement?

Accepted Answer

$$40\ \mathrm{m}$$\ east

Question 3

Which of the following best describes the difference between speed and velocity?

Accepted Answer

Velocity includes direction, speed does not.

Question 4

If a runner completes a 400 m lap in 50 s, ending where they started, what is their average velocity?

Accepted Answer

$$0\ \mathrm{m/s}$$

Question 5

Which of the following is an example of a scalar quantity?

Accepted Answer

Distance

Question 6

A car moves with a constant velocity of $$20\ \mathrm{m/s}$$ for $$10\ \mathrm{s}. $$What is the total distance traveled?

Accepted Answer

$$200\ \mathrm{m}$$

Question 7

On a velocity vs. time graph, what does the area under the curve represent?

Accepted Answer

Displacement

Question 8

A ball is thrown straight up with an initial velocity of $$15\ \mathrm{m/s}. $$What is its velocity at the highest point?

Accepted Answer

$$0\ \mathrm{m/s}$$

Question 9

Which kinematic equation would you use to find the final velocity given initial velocity, acceleration, and displacement?

Accepted Answer

$$v^2$$ = $$v_0^2 + 2a(x$$ - $$x_0$$)$$

Question 10

A cyclist travels at $$5\ \mathrm{m/s}$$ for $$4\ \mathrm{s}$$, then at $$10\ \mathrm{m/s}$$ for $$2\ \mathrm{s}. $$What is the average speed?

Accepted Answer

$$6.7\ \mathrm{m/s}$$

Question 11

If the slope of a position vs. time graph is constant and positive, what does this indicate?

Accepted Answer

The object is moving at constant velocity.

Question 12

A car accelerates from rest at $$2\ \mathrm{m/s^2$}$$ for $$5\ \mathrm{s}. $$What is its final velocity?

Accepted Answer

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

Question 13

Which of the following statements about instantaneous velocity is correct?

Accepted Answer

It is the velocity at a specific moment in time.

Question 14

A train moves at $$30\ \mathrm{m/s}$$ relative to the ground. A passenger walks forward at $$2\ \mathrm{m/s}$$ relative to the train. What is the passenger’s velocity relative to the ground?

Accepted Answer

$$32\ \mathrm{m/s}$$

Question 15

On an acceleration vs. time graph, what does the area under the curve represent?

Accepted Answer

Change in velocity

Question 16

A car’s velocity changes from $$10\ \mathrm{m/s} to$$ $$30\ \mathrm{m/s} in$$ $$4\ \mathrm{s}. $$What is its average acceleration?

Accepted Answer

$$2.5\ \mathrm{m/s^2$}$$

Question 17

Which of the following is true about displacement?

Accepted Answer

It is the straight-line distance from start to finish.

Question 18

A ball is dropped from rest and falls freely under gravity. Which equation gives the distance fallen after $$t$$ seconds?

Accepted Answer

$$d = \frac{1}{2} g t^2$

Question 19

If the velocity of an object is zero, which of the following must also be zero?

Accepted Answer

Speed

Question 20

A car travels north at $$20\ \mathrm{m/s}$$ for $$3\ \mathrm{s}$$, then south at $$10\ \mathrm{m/s}$$ for $$2\ \mathrm{s}. $$What is the car’s total displacement?

Accepted Answer

$$40\ \mathrm{m}$$\ north

Question 21

Which of the following best describes average velocity?

Accepted Answer

The total displacement divided by the total time.

Unit 1: Linear Motion – Study Notes for Physics with Calculus

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