Quiz about PS- Newton's Laws Summative Test

Question 1

What does Newton's first law of motion state?

Accepted Answer

An object at rest tends to stay at rest and an object in motion tends to stay in motion in the same direction and at the same speed unless acted upon by an unbalanced force.

Answer

For every action there is an equal and opposite reaction

Answer

The larger the mass of an object the more force needed to move it? F=ma

Question 2

What does Newton's second law of motion state?

Accepted Answer

The larger the mass of an object the more force needed to move it? F=ma

Answer

For every action there is an equal and opposite reaction

Answer

An object at rest tends to stay at rest and an object in motion tends to stay in motion in the same direction and at the same speed unless acted upon by an unbalanced force.

Question 3

What does Newton's third law of motion state?

Accepted Answer

For every action there is an equal and opposite reaction

Answer

The larger the mass of an object the more force needed to move it? F=ma

Answer

An object at rest tends to stay at rest and an object in motion tends to stay in motion in the same direction and at the same speed unless acted upon by an unbalanced force.

Question 4

Newton's FIRST law of motion is also known as the ___.

Accepted Answer

Law of Inertia

Answer

Law of Action/Reaction

Answer

Law of Constant Acceleration

Question 5

Newton's SECOND law of motion is also known as the ___.

Accepted Answer

Law of Constant Acceleration

Answer

Law of Action/Reaction

Answer

Law of Inertia

Question 6

Newton's THIRD law of motion is also known as the ___.

Accepted Answer

Law of Action/Reaction

Answer

Law of Inertia

Answer

Law of Constant Acceleration

Question 7

30 mph west is an example of _________.

Accepted Answer

velocity

Answer

force

Answer

speed

Answer

acceleration

Question 8

A lamp sitting on a table is demonstrating Newton's ___ Law.

Accepted Answer

1st

Answer

2nd

Answer

3rd

Answer

4th

Question 9

A ______ is a push or pull on an object.

Accepted Answer

force

Answer

speed

Answer

acceleration

Answer

velocity

Question 10

A car traveling 65 mph is an example of its ________.

Accepted Answer

speed

Answer

force

Answer

acceleration

Answer

velocity

Question 11

A force that causes an object to slow down when it touches another object is _________.

Accepted Answer

friction

Answer

gravity

Answer

inertia

Answer

Newton

Question 12

if an object stays still or continues moving at the same speed and in the same direction, it is a _______ force.

Accepted Answer

balanced

Answer

weak

Answer

strong

Answer

unbalanced

Question 13

What will be the effect on the boy in the picture if the driver stops quickly?

Accepted Answer

He will move forward pressing against the seatbelt.

Answer

Because of inertia he will remain in the same position.

Answer

He will be pushed back into the car seat.

Answer

He will move from one side of the car seat to the other.

Question 14

Sitting at the top of a steep hill on a roller coaster (not moving), is an example of:

Accepted Answer

Inertia

Answer

Acceleration

Answer

Speed

Answer

Velocity

Question 15

What is the net force and the direction of movement?

Accepted Answer

50 Newtons, Left

Answer

50 Newtons, Right

Answer

500 Newtons, RIght

Answer

450 Newtons, LEft

Question 16

What law of motion does this picture represent?

Accepted Answer

Newtons 1st law

Answer

Newtons 3rd law

Answer

Newtons 4th law

Answer

Newtons 2nd law

Question 17

What law of motion does this picture represent?

Accepted Answer

Newtons 2nd law

Answer

Newtons 1st law

Answer

law of gravity

Answer

Newtons 4th law

Question 18

What law of motion does this picture represent?

Accepted Answer

Newtons 3rd law

Answer

Newtons 1st law

Answer

Newtons 4th law

Answer

Newtons 2nd law

Question 19

A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the encyclopedia?

Accepted Answer

m = 3.0 kg

Answer

m = 4.0 kg

Answer

m = 3.0 ml

Answer

m = 30.0 g

Question 20

Determine the accelerations that result when a 12-N net force is applied to a 3-kg object.

Accepted Answer

4 m/s

Answer

3 m/s

Answer

4 ft/s

Answer

13 m/s

Question 21

Mass is a measure of an object's inertia. Objects with greater mass have a greater inertia; objects with less mass have less inertia.

Accepted Answer

true

Answer

false

Question 22

Addie applies the same amount of force when she kicks a kickball and a cement wall. The kickball moves, but the cement wall does not move. Which of Newton's laws does this illustrate and why?

Accepted Answer

Newton's 2nd law, because it will require more force to move the brick wall because it has more mass.

Answer

Newton's 1st law because force = mass x acceleration, so the kickball moves, but the wall does not.

Answer

Newton's 1st law because the action is the wall/ball, the reaction in Addie's foot kicking.

Answer

Newton's 3rd law, because force = mass x acceleration.

Question 23

Grissom jumps off a diving board. When he hits the water, he continues to move downward, but a large amount of water moves up in a huge splash. Which of Newton's laws does this illustrate and why?

Accepted Answer

Newton's 3rd law, because the action of him moving downward causes the reaction of the water moving up.

Answer

Newton's 2nd law, because his mass is high, so his acceleration is smaller to cause the same force.

Answer

Newton's 1st law because there is an equal and opposite reaction from the water.

Answer

Newton's 2nd law because the water will stay at rest.

Question 24

What does friction do to movement of a ball rolling on the ground?

Accepted Answer

It slows it down

Answer

It speeds it up

Answer

It does not impact motion

Answer

It causes gravity to increas

Question 25

Mrs. Harding was driving to school when a deer runs in front of her car. She slams on the brakes in the car. Which concept explains why her coffee continues to move forward and spills everywhere when the car comes to a stop?

Accepted Answer

inertia

Answer

friction

Answer

velocity

Answer

gravity

Question 26

If all the choices below were traveling at the same speed, which of the following would have the greatest inertia based on its mass?

Accepted Answer

dump truck

Answer

sports car

Answer

toy car

Answer

bicycle

Answer

tennis ball

Question 27

What is the NET FORCE for the bowling ball AND in what direction will it move?

Accepted Answer

50N, RIGHT

Answer

50N, LEFT

Answer

70N, LEFT

Answer

70N, RIGHT

Question 28

What is the best example of Newton's Third Law of Motion?

Accepted Answer

When a baseball is hit, the ball pushes on the bat and the bat pushes on the ball

Answer

A bowling ball siting at rest

Answer

A spaceship traveling at a constant speed in space

Answer

A metal 10 kg ball has more mass than a golf ball

Question 29

Which end of the balloon shows the ACTION force according to Newton's Third Law?

Accepted Answer

Air releasing out of the open end of the balloon

Answer

The closed end of the balloon

Question 30

Dr. Evil created a machine that increases the force of gravity on Earth. Assuming that gravity is the only force that changes, how would this affect the velocity of your car?

Accepted Answer

it would decrease velocity because rolling friction increases

Answer

it would decrease velocity because acceleration increases

Answer

it would increase velocity because rolling friction would increase

Answer

it would increase velocity because wind friction increases

Question 31

Speed formula

Accepted Answer

S=D/T

Answer

S=S X T

Answer

S=TX S

Answer

S=T/D

Question 32

Forces are measured with units called

Accepted Answer

Newtons

Answer

Meters

Answer

Length

Answer

Miller

Question 33

Bill jogs 400 meters to Andy's house, turns around, and runs 400 meters back home.  He does so in 267 seconds.  What is Bill's average speed?

Accepted Answer

about 3 m/s

Answer

about 1.5 m/s

Answer

0

Answer

about 4 m/s

Question 34

A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?

Accepted Answer

10 m/s

Answer

1000 m/s

Answer

100 seconds

Answer

10 seconds

Question 35

Dave runs a 400 m race with a speed of 4 m/s. What time will it take him to finish the race?

Accepted Answer

100 seconds

Answer

400 minutes

Answer

100 minutes

Answer

.25 seconds

Question 36

Which of the following is a unit of speed ?

Accepted Answer

m/s

Answer

sec

Answer

mi

Answer

min

Question 37

A train travels 25 km in .5 hrs. How fast is the train going?

Accepted Answer

50 km/hr

Answer

25 miles/hr

Answer

5 miles/hr

Answer

125 km/hr

Question 38

A different runner trains for a marathon for 6 months by eating nothing but bags of french fries from McDonalds. They run a 10 meter dash in 100 seconds. What is their speed?

Accepted Answer

0.1 m/s

Answer

0.01 m/s

Answer

1 m/s

Answer

10 m/s

Question 39

When you throw a basketball, your force on the ball accelerates it. The ball pushes back on you with an equal and opposite force. Why don't you accelerate as much as the ball?

Accepted Answer

Your acceleration is much smaller than the ball's because of your larger mass

Answer

The reaction force is only on your hand, not the rest of you

Answer

Friction stops you from acceleration

Question 40

When a cannon fires a cannonball we observe Newton's third law. Which is the reaction force?

Accepted Answer

the cannon moving backwards

Answer

The cannon moving forward

Answer

the cannonball moving backwards

Answer

The cannonball moving forward

Question 41

An archer shoots an arrow. The action force is the bowstring against the arrow, the reaction force is...

Accepted Answer

the arrow's push against the bowstring

Answer

Air resistance against the bow

Answer

the grip of the archer's hand on the bow

Question 42

A player throws a ball. The action force is the player impact on the ball. The reaction force is...

Accepted Answer

The force of the ball impact on the player

Answer

The force of the grip of the ball

Answer

The celebration the player is thinking of

Question 43

A player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction force is...

Accepted Answer

the force of the ball against the bat

Answer

The grip of the player's hands on the ball

Answer

the air resistance of the ball

Question 44

What is the reaction force to a foot pushing down on the floor?

Accepted Answer

The floor pushing back against the foot

Answer

The foot going through the floor

Answer

The floor breaking to the foot

PS- Newton's Laws Summative Test

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