Quiz about Contact Forces

Question 1

What does the measurement unit N stand for?

Accepted Answer

Newton

Answer

Net Force

Answer

Neutrino

Answer

Net Weight

Question 2

How will this object move?

Accepted Answer

It won't move.

Answer

It will move to the right.

Answer

It will move to the left.

Answer

It will move in both directions.

Question 3

True or False:
A force is a push or a pull.

Accepted Answer

True

Answer

False

Question 4

_{Which rock layer in the diagram seems to be the oldest?}

Accepted Answer

A

Answer

F

Answer

E

Answer

B

Question 5

Is intrusion V older or younger than layer W?

Accepted Answer

younger

Answer

older

Question 6

How old do Paleontologists believe the Earth is?

Accepted Answer

4.6 billion years old

Answer

2015 years old

Answer

3.6 billion years old

Answer

4.6 million years old

Question 7

Paleozoic, Mesozoic & Cenozoic are all

Accepted Answer

Eras

Answer

Epochs

Answer

Periods

Answer

Eons

Question 8

Which era ended with the K-T extinction, probably due to an asteroid?

Accepted Answer

Mesozoic

Answer

Paleozoic

Answer

Phanerozoic

Answer

Cenozoic

Question 9

Which fossil is oldest?

Accepted Answer

the fish

Answer

the crab

Answer

the frog

Answer

the plant

Question 10

What is a Qualitative method of dating fossils using sedimentary layers in rock?

Accepted Answer

Relative Dating

Answer

Absolute dating

Answer

Eras

Answer

Mass extinction

Question 11

What is a method of dating fossils using quantitative data like counting the number of Carbon-14 atoms?

Accepted Answer

Absolute Dating

Answer

Relative Dating

Answer

Era

Answer

Mass Extinction

Question 12

If there are two forces going in the same direction how would you find the net force?

Accepted Answer

Add

Answer

Subtract

Answer

Neither

Answer

Multiply

Question 13

8 N to the left , and 4 N to the right. Find the net force. Is this balanced?

Accepted Answer

4 N Left  No

Answer

12 N Right  No

Answer

12 N Right  Yes

Answer

4 N Left  Yes

Question 14

Which one is balanced?

Accepted Answer

top

Answer

bottom

Answer

both

Answer

neither

Question 15

What is the net force?

Accepted Answer

4000 N left

Answer

5000 N right

Answer

4000 N right

Answer

40 N left

Question 16

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.

Accepted Answer

Newton's 1st Law

Answer

Newton's 2nd Law

Answer

Newton's 3rd Law

Question 17

Which law best describes inertia

Accepted Answer

1

Answer

2

Answer

3

Answer

All of the above

Question 18

Question 18.

Accepted Answer

3

Answer

1

Answer

2

Answer

All of the above

Question 19

Object at rest stays at rest

Accepted Answer

1

Answer

2

Answer

3

Answer

All of the above

Question 20

F=MxA

Accepted Answer

2

Answer

1

Answer

3

Answer

All of the above

Question 21

An automobile you are riding in suddenly stops, but you continue to go forward.

Accepted Answer

Newton's
1st
Law of Motion

Answer

Newton's
2nd
Law of Motion

Answer

Newton's
3rd
Law of Motion

Question 22

When you push a boat off from the dock, you are demonstrating Newton's 3rd Law of Motion. It simply states that for every action there is an equal and opposite _______________?

Accepted Answer

Reaction

Answer

Motion

Answer

Change

Answer

Push

Question 23

An object and rest will stay at rest and an object in motion will stay in motion unless acted on by a force, is which one of Newton's Laws of Motion?

Accepted Answer

1st Law of Motion

Answer

4th Law of Motion

Answer

3rd Law of Motion

Answer

2nd Law of Motion

Question 24

An object will accelerate in the direction of the force applied to it.

Accepted Answer

Newton's 2nd Law

Answer

Newton's 1st Law

Answer

Newton's 3rd Law

Answer

Newton's 4th Law

Question 25

If a lizard can run 8 m across the water in 4 seconds, how fast is he traveling?

Accepted Answer

2 m/s

Answer

32 m/s

Answer

2 seconds

Answer

34 meters

Question 26

A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

Accepted Answer

16 m/s2

Answer

24 m/s2

Answer

18 m/s2

Answer

16 m/s

Question 27

The mesozoic era is known as the age of the

Accepted Answer

Reptiles

Answer

Mammals

Answer

People

Answer

Fish

Question 28

Order the Eras from Newest to oldest

Accepted Answer

Cenozoic, Mesozoic, Paleozoic, Precambrian

Answer

Mesozoic, Cenozoic, Precambrian, Paleozoic

Answer

Paleozoic, Precambrian, Mesozoic, Cenozoic

Answer

Cenozoic, Paleozoic, Precambrian, Mesozoic

Question 29

Why is person B having a hard time moving down the hill?

Accepted Answer

Person B has more friction than person A.

Answer

Person B has the same friction as person A.

Answer

Person B is out of shape.

Answer

Person B has less friction has person A.

Question 30

A golfer uses a golf ball (45 g) and a marble (22.5 g). They want to hit the ball with enough force to cause them to move at the same acceleration. What must occur?

Accepted Answer

The marble should be hit with 2x (double) the amount of force as the golf ball.

Answer

The marble should be hit with 1/2 the amount of force as the golf ball.

Answer

The golf ball should be hit with 2x (double) the amount of force as the golf ball.

Answer

The same amount of force should be applied to both balls.

Question 31

What do you think the cyclist is doing between 11am and 1pm?

Accepted Answer

The cyclist has stopped for lunch

Answer

The cyclists is riding at a constant speed on flat ground

Answer

The cyclist is practicing sprints

Answer

The cyclist is riding up a hill

Question 32

What is happening between 9am and 11am?

Accepted Answer

The cyclists is traveling at a constant speed

Answer

The cyclist is traveling up a hill

Answer

The cyclists is speeding up

Answer

The cyclist is slowing down

Question 33

What is happening in section C?

Accepted Answer

speed is decreasing

Answer

going down a hill

Answer

speed is increasing

Question 34

What is occurring at E?

Accepted Answer

It is traveling at a constant speed

Answer

there is no change in motion

Question 35

At which position is the object accelerating the fastest?

Accepted Answer

k

Answer

c

Answer

neither because they are slowing down, which isn't acceleration

Question 36

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 37

The picture of the position vs. time graph shows an object that is...

Accepted Answer

accelerating/speeding up

Answer

moving at a constant speed

Answer

not moving

Answer

accelerating/slowing down.

Question 38

Calculate the acceleration for segment A.

Accepted Answer

2 m/s2

Answer

20 m/s2

Answer

-2 m/s2

Answer

0 m/s2

Question 39

What does this graph represent?

Accepted Answer

Not moving

Answer

Constant speed

Answer

Acceleration

Question 40

What does this graph represent?

Accepted Answer

Constant Speed

Answer

Acceleration

Answer

Not moving

Question 41

The SI unit for acceleration is

Accepted Answer

m/s2

Answer

mph

Answer

m/s

Question 42

A 20 kg bike accelerates at 10 m/s². what was the force?

Accepted Answer

200 Newtons

Answer

25 Newtons

Answer

20 Newtons

Answer

10 Newtons

Question 43

A skier needs to apply a force of 132 N to accelerate at a rate of 2 m/s². What is the mass of the skier? The answer to this question is most likely (HINT: Look at the units!!!) -

Accepted Answer

66 kg

Answer

66 N

Answer

66 m/s2

Question 44

A force of 90N is applied to each cart below, which one will accelerate the fastest?

Accepted Answer

Cart 1

Answer

Cart 2

Answer

Cart 3

Answer

Cart 4

Contact Forces

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