Quiz about PS Unit 4 Test Review Question

Question 1

A bus travels 20 km in 30 minutes. What is the average speed of the bus?

Accepted Answer

40 km/min

Answer

20 km/min

Answer

30 km/min

Answer

50 km/min

Question 2

If a car travels 400 m in 20 seconds, how fast is it going?

Accepted Answer

20 m/s

Answer

2 m/s

Answer

32 m/s

Question 3

A boat travels at 22 km/hr for 10 hrs, what distance will it travel?

Accepted Answer

220 km

Answer

220 miles

Answer

2.2 km

Answer

22 km

Question 4

While going to school, a student walks an average of 5 km/hr west for 12 blocks.

Accepted Answer

Velocity

Answer

Speed

Answer

Acceleration

Question 5

A car travels 30 miles/hr for 3 hours, calculate the distance it will travel

Accepted Answer

90 miles

Answer

10 miles

Answer

600 miles

Answer

90 km

Question 6

88 m/s north

Accepted Answer

Velocity

Answer

Speed

Answer

Acceleration

Question 7

88 m/s

Accepted Answer

Speed

Answer

Velocity

Answer

Acceleration

Question 8

A truck driving at 60 miles per hour travels 150 miles. How long is it driving for?

Accepted Answer

2.5 hours

Answer

9000 hours

Answer

0.4 hours

Answer

210 hours

Question 9

A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.

Accepted Answer

5.7m/s2

Answer

2.2m/s2

Answer

7.0m/s2

Answer

70m/s2

Question 10

Acceleration is defined as the CHANGE in

Accepted Answer

velocity divided by the time interval

Answer

time it takes for one place to move to another place.

Answer

velocity of an object.

Answer

distance divided by the time interval

Question 11

A dog runs with an initial speed of 7.5 m/s on a waxed floor.  It slides to a stop in 15 seconds.  What is the acceleration?

Accepted Answer

-0.5 m/s2

Answer

-7.5 m/s

Answer

-7.5 m/s2

Answer

7.5 mi//hr

Question 12

What is happening at D?

Accepted Answer

Fast steady speed; moving away from the starting position

Answer

Stationary

Answer

Accelerating

Answer

Slower steady speed; moving away from the starting position

Question 13

What is happening at A?

Accepted Answer

Stationary

Answer

Accelerating

Answer

Slower steady speed; moving away from the starting position

Answer

Steady speed; returning to start position

Question 14

Which runner won the race?

Accepted Answer

A

Answer

B

Answer

C

Question 15

At 60 seconds, how far had this object traveled?

Accepted Answer

40 m

Answer

0 m

Answer

10 m

Answer

20 m

Question 16

If gravity is the only force acting on an object, we say the object is in:

Accepted Answer

Free fall

Answer

Equilibrium

Answer

Motion

Answer

Inertia

Question 17

Who discovered gravity?

Accepted Answer

Isaac Newton

Answer

Albert Einstein

Answer

Galileo Galilei

Answer

Nikola Tesla

Question 18

What two factors can contribute to a change in acceleration?

Accepted Answer

Speed and direction

Answer

Mass and direction

Answer

Force and mass

Answer

Distance and velocity

Question 19

What kind of friction is present between two objects that touch but do not move?

Accepted Answer

Static

Answer

Rolling

Answer

Sliding

Question 20

What kind of friction is present when an object rolls across a surface?

Accepted Answer

Rolling

Answer

Static

Answer

Sliding

Question 21

What type of friction is present when an object slides across another object?

Accepted Answer

Sliding

Answer

Static

Answer

Rolling

Question 22

______ is dependent upon gravitational pull; therefore can change based on location.

Accepted Answer

Weight

Answer

Mass

Answer

Volume

Answer

Density

Question 23

______ does NOT change based on location.

Accepted Answer

Mass

Answer

Weight

Answer

Volume

Answer

Density

Question 24

You push a box 35 N to the right. Your friend pushes the box 25 N in the same direction. What is the net force?

Accepted Answer

60 N unbalanced to the right

Answer

60 N balanced to the right

Answer

10 N balanced to the right

Answer

10 N unbalanced to the right

Question 25

If forces are going in the same direction, you should

Accepted Answer

add the forces

Answer

subtract the forces

Answer

multiply the forces

Answer

divide the net force

Question 26

What is the net force of this object?

Accepted Answer

400 F arrow downward

Answer

400 F arrow upward

Answer

800 F arrow upward

Answer

800 F arrow downward

Question 27

What will causes an object to move?

Accepted Answer

unbalanced forces

Answer

balanced forces

Answer

net force

Answer

potential energy

Question 28

What is the net force?

Accepted Answer

net force of 0

Answer

28 N unbalanced

Answer

14 N unbalanced

Answer

14 N balanced

Question 29

What is the net force?

Accepted Answer

900 N unbalanced right

Answer

900 N balanced right

Answer

0 balanced

Answer

0 unbalanced

Question 30

What is the net force?

Accepted Answer

50 N unbalanced left

Answer

50 N balanced right

Answer

950 N unbalanced left

Answer

950 N balanced right

Question 31

Balanced forces causes

Accepted Answer

no change in motion

Answer

speed of an object

Answer

change in motion

Answer

no friction on object

Question 32

Which law of motion explains why a person moves forward in a boat as they move the water backward with a paddle?

Accepted Answer

3rd

Answer

1st

Answer

2nd

Question 33

The tendency of an object to resist a change in motion is:

Accepted Answer

Inertia

Answer

Momentum

Answer

Acceleration

Answer

Force

Question 34

Name 3 common forces that can be applied to objects:

Accepted Answer

Friction, Gravity, and Air resistance

Answer

Speed, Velocity, and Acceleration

Answer

Mass, Weight, and Energy

Question 35

What is the unit for force?

Accepted Answer

N

Answer

kg

Answer

m/s

Answer

m/s2

Question 36

What is the unit for weight?

Accepted Answer

N

Answer

kg

Answer

m/s

Answer

m/s2

Question 37

What is the unit for mass?

Accepted Answer

kg

Answer

N

Answer

m/s

Answer

m/s2

Question 38

What is the unit for speed?

Accepted Answer

m/s

Answer

N

Answer

kg

Answer

m/s2

Question 39

What is the unit for acceleration?

Accepted Answer

m/s2

Answer

N

Answer

kg

Answer

m/s

Question 40

Things stay still or move in a straight line unless a force makes them stop or change.

Accepted Answer

Newton's 1st Law

Answer

Newton's 2nd Law

Answer

Newton's 3rd Law

Question 41

How fast something moves depends on how heavy it is and how much force you use.

Accepted Answer

Newton's 2nd Law

Answer

Newton's 1st Law

Answer

Newton's 3rd Law

Question 42

When you push something, it pushes back with the same force in the opposite direction.

Accepted Answer

Newton's 3rd Law

Answer

Newton's 1st Law

Answer

Newton's 2nd Law

Question 43

A book lying on a table remains stationary unless someone pushes it.

Accepted Answer

Newton's 1st Law

Answer

Newton's 2nd Law

Answer

Newton's 3rd Law

Question 44

If you push a shopping cart with twice the force, it accelerates twice as fast.

Accepted Answer

Newton's 2nd Law

Answer

Newton's 1st Law

Answer

Newton's 3rd Law

Question 45

A bird flaps its wings down against the air and the air pushes up on the wings.

Accepted Answer

Newton's 3rd Law

Answer

Newton's 1st Law

Answer

Newton's 2nd Law

Question 46

This force opposes the force of gravity when objects fall through the air:

Accepted Answer

Air Resistance

Answer

Friction

Answer

Gravity

Answer

Inertia

Question 47

Find the acceleration of the box using the equation in the upper left corner.

Accepted Answer

0.25 m/s2

Answer

1600 m/s2

Answer

4 m/s2

Answer

1 m/s2

Question 48

Acceleration Graph (velocity/time): During which interval is the object slowing down?

Accepted Answer

E to F

Answer

A to B

Answer

D to E

Answer

G to H

Question 49

Acceleration Graph (velocity/time): During which interval is the object maintaining velocity?

Accepted Answer

D to E

Answer

A to B

Answer

E to F

Answer

G to H

Question 50

Acceleration Graph (velocity/time): During which interval is the object decelerating?

Accepted Answer

E to F

Answer

A to B

Answer

D to E

Answer

G to H

Question 51

Acceleration Graph (velocity/time): During which interval is the object accelerating?

Accepted Answer

A to B

Answer

D to E

Answer

E to F

Answer

G to H

Question 52

Speed Graph (distance/time): What is happening at E?

Accepted Answer

Returning to start position

Answer

Stationary

Answer

Accelerating

Answer

Moving away from the starting position

Question 53

Speed Graph (distance/time): What is happening at A?

Accepted Answer

Stationary

Answer

Accelerating

Answer

Moving away from the starting position

Answer

Returning to start position

PS Unit 4 Test Review Question

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