Quiz about Amplify Force/Motion EOM Review 23-24

Question 1

A student reads his paper on friction to the class. Which statement should he include in his paper if he wants to present accurate information?

Accepted Answer

Friction opposes the direction of movement.

Answer

Friction increases mechanical advantage

Answer

Friction makes movement of an object easier.

Answer

Friction reduces the amount of work used to move an object.

Question 2

If an unbalanced force acts on a stationary object, the object will...

Accepted Answer

accelerate in the direction of the force

Answer

remain stationary

Answer

move away from the force

Answer

accelerate in the opposite direction of the force

Question 3

If no force is being applied to a stationary object, the object will...

Accepted Answer

remain stationary.

Answer

accelerate in the direction of the force.

Answer

move at a constant speed in the direction of the force.

Answer

accelerate in the opposite direction of the force

Question 4

A brick is resting on a level, smooth surface. When a student applies a horizontal force of 5 N to the brick, the force of friction on the brick is also 5 N. Which statement BEST describes the effect of these two forces on the brick?

Accepted Answer

The net force on the brick is 0 N, and the brick remains at rest.

Answer

The net force on the brick is 0 N, and the brick begins to move.

Answer

The net force on the brick is 10 N, and the brick begins to move.

Answer

The net force on the brick is 10 N, and the brick remains at rest.

Question 5

Which statement best explains why a car that is rolling on a level surface will eventually come to a stop?

Accepted Answer

Frictional forces oppose the motion of the car.

Answer

The natural state of an object is to be at rest.

Answer

Forward motion slowly runs out as energy is expended.

Answer

Inertia acting on an object will dissipate.

Question 6

Complete the sentence to match your observations: When you exert a stronger force on an object, you will see ________ change in velocity as compared to exerting a weaker force on the same object.

Accepted Answer

a greater

Answer

a weaker

Answer

the same

Question 7

Which of the following is NOT TRUE about friction:

Accepted Answer

There is no friction on earth.

Answer

Friction is a force that acts in the opposite direction of motion.

Answer

Friction slows objects down.

Answer

Friction on carpet is greater than friction on a bare floor.

Question 8

Speed in a particular direction

Accepted Answer

velocity

Answer

force

Answer

motion

Question 9

Which of the following pictures models Claim 1: The thrusters caused the pod to move in the opposite direction.

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 10

Which of the following models claim 2: The thrusters only slowed the pod, it didn't stop. The pod hit the space station, which made it bounce and move in the opposite direction.

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 11

Three boats were moving across the surface of a lake. The gray and pink boats are a greater mass than the orange boat. Each boat was bumped by another boat. Which boat experienced the strongest force when hit? How do you know?

Accepted Answer

The gray and pink boats because they are more massive, and all boats changed velocity by same amount.

Answer

The pink boat - it's as massive as the gray boat and has the highest ending speed.

Answer

All three - they all changed speed by the same amount.

Answer

The gray boat - it takes more force to slow down an object than it takes to make it go faster.

Question 12

In which crash did the puck experience a stronger force?

Accepted Answer

Crash 2: The force of the purple paddle was stronger in this crash because it has more mass, so the force on the puck was stronger,

Answer

The puck didn't experience a force. Only the paddles experienced force.

Answer

The diagram doesn't tell you anything about the force on the puck.

Answer

The puck experienced the same force in both crashes.

Question 13

In which crash did the test car experience a stronger force?

Accepted Answer

Crash 1: Force on garbage truck was stronger, so force on car was also stronger.

Answer

There is NO force on the car. In each crash, only the truck experienced force.

Answer

It was the same from both crashes. The trucks changed speed by the same amount in both crashes, so the force on the test car was the same both times.

Answer

The diagram doesn't tell you anything about the force on the test car. It only tells you about the force on the trucks.

Question 14

In which crash did the skateboard experience the stronger force? Why?

Accepted Answer

Crash 2; the force on the cart was stronger in this crash.

Answer

The skateboard did not experience force, only the shopping cart did.

Answer

The diagram doesn't tell you anything about the force on the skateboard.

Answer

The skateboard experienced THE SAME force in both crashes.

Question 15

In which crash does the satellite experience a stronger force?

Accepted Answer

Crash 1: The force exerted by the black asteroid would have been stronger in this crash, so the force on the satellite would also have been stronger.

Answer

It was the same force in both crashes.

Answer

The diagram doesn't tell you anything about the force on the satellite.

Answer

There is no force on the satellite.

Question 16

In order for an object to start moving, the force must come from

Accepted Answer

any direction

Answer

the same direction as the object's motion

Answer

the opposite direction as the object's motion

Question 17

In order for an object to stop moving, the force must come from

Accepted Answer

the opposite direction as the object's motion

Answer

the same direction as the object's motion

Answer

any direction.

Question 18

The motion of an object depends on the_____ of the object and the amount of ____ used.

Accepted Answer

mass and force

Answer

outside and equal

Answer

force and Sir Isaac Newton

Question 19

The moment when two objects hit each other

Accepted Answer

Collision

Answer

Force

Answer

Speed

Question 20

A ___________ is required to change the velocity of an object.

Accepted Answer

force

Answer

larger mass

Answer

smaller mass

Question 21

A stronger force can cause a greater change in

Accepted Answer

velocity.

Answer

direction.

Answer

speed.

Answer

mass.

Question 22

The amount of matter in an object is called its...

Accepted Answer

mass

Answer

pressure

Answer

weight

Answer

force

Question 23

If the same strength force is exerted on two objects, the object with ________ mass will have a _________ change in velocity.

Accepted Answer

more, lesser

Answer

less, lesser

Answer

more, greater

Answer

less, shorter

Question 24

When forces on an object are balanced, what is the force?

Accepted Answer

Zero

Answer

Five

Answer

Ten

Answer

Six

Question 25

A force is:

Accepted Answer

A push

Accepted Answer

A pull

Answer

No movement

Answer

Oldest to youngest

Question 26

A balanced force ___________change the motion of object.

Accepted Answer

Does Not

Answer

Does

Question 27

Which picture(s) shows an unbalanced force?

Accepted Answer

Option C is correct

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Question 28

How does gravity pull?

Accepted Answer

Downward or toward center of gravity.

Answer

Equal to the height

Answer

Equal to the mass of Earth

Answer

Upward toward the center of gravity

Question 29

When forces on an object are balanced, what is the force?

Accepted Answer

Zero

Answer

Five

Answer

Ten

Answer

Six

Question 30

How can you increase the acceleration of an object?

Accepted Answer

decrease its mass

Answer

increase its friction

Answer

increase its mass

Answer

decrease the force applied to it

Question 31

______ measures an object's tendency to resist changing its motion.

Accepted Answer

inertia

Answer

Acceleration

Answer

Gravity

Answer

weight

Question 32

What is the net force

Accepted Answer

0 N

Answer

10 N

Answer

25 N

Answer

1 N

Question 33

What is the net force?

Accepted Answer

400 N Down

Answer

400 N Up

Answer

- 400 N Down

Answer

800 N Down

Question 34

What is the net force?

Accepted Answer

40 N right

Answer

40 N left

Answer

0 N Balalnced

Answer

400 N right

Question 35

Energy can be classified into two main categories, kinetic energy and potential energy.  Kinetic energy is when an object is:

Accepted Answer

actively doing something

Answer

standing still

Answer

changing states of matter

Answer

objects do not have kinetic energy

Question 36

The faster an object moves, the ________ kinetic energy it has.

Accepted Answer

more

Answer

less

Answer

none of the above

Answer

all of the above

Question 37

There is ______ friction on a smooth surface.

Accepted Answer

less

Answer

more

Answer

no

Answer

lots of

Question 38

Friction moves in the ______ direction of the object moving.

Accepted Answer

opposite

Answer

same

Answer

different

Question 39

What will happen to the friction when an item moves on a rough surface?

Accepted Answer

It will increase.

Answer

Nothing

Answer

It will decrease.

Answer

It will disappear.

Question 40

How does friction affect speed?

Accepted Answer

more friction decreases speed

Answer

more friction increases speed

Answer

less friction decreases speed

Question 41

The rougher the surface, the faster an object will travel over the surface.

Accepted Answer

False

Answer

True

Question 42

Suppose an astronaut were to visit a planet where the gravity is half that of Earth.  His MASS on that planet would be ______________.

Accepted Answer

the same as his Earth mass

Answer

half his Earth mass

Answer

twice his Earth mass

Answer

zero

Question 43

______ is the gravitational force exerted on an object

Accepted Answer

Weight

Answer

Mass

Answer

Gravity

Answer

Force

Question 44

What statement is true?

Accepted Answer

Mass never changes. Weight does.

Answer

Weight never changes. Mass does.

Answer

Both mass and weight change because they are affected by gravity.

Answer

Neither mass nor weight change. They are always the same.

Question 45

If you have an empty box and then fill it with books, which statement is true about the box?

Accepted Answer

The mass and weight are directly proportional and both increase.

Answer

The mass increases and the weight decreases because they are indirectly proportional.

Answer

The weight increases but since mass doesn't change it stays the same.

Answer

Gravity pulls less on the box when it is full so it weighs less.

Question 46

Mass is measured in ___________

Accepted Answer

Grams

Answer

Newtons

Answer

Joules

Answer

Pounds

Question 47

Force is measured in _______

Accepted Answer

Newtons

Answer

Grams

Answer

Pounds

Answer

Joules

Question 48

Vocab: The total amount of matter that makes up an object.

Accepted Answer

Mass

Answer

Matter

Answer

Particles

Answer

Collisions

Question 49

True/False: An object's MASS will affect its Change of VELOCITY

Accepted Answer

True

Answer

False

Question 50

If the force of gravity acting upon an object changes...

Accepted Answer

its weight changes too

Answer

its height changes too

Answer

its length changes too

Answer

its mass changes too

Question 51

If you went to the moon right now, your weight would be...

Accepted Answer

Less than it is on Earth

Answer

MORE than it is on Earth

Answer

the Same as on Earth

Answer

Your weight would be Unchanged

Question 52

If you were dropped on the moon right now, your mass would be

Accepted Answer

Unchanged

Answer

More than on Earth

Answer

Less than on Earth

Question 53

True/False: Even though your mass might be the same on the moon as it is on Earth, the gravitational pull would be weaker on the moon because the moon is less massive than Earth is

Accepted Answer

True

Answer

False

Question 54

If you kick a kickball, the change of velocity will be PROPORTIONAL to the........

Accepted Answer

Change of Velocity

Answer

Change of weight

Answer

Change of Pace

Answer

Change of Direction

Question 55

Which of these best explains the relationship between mass and weight?

Accepted Answer

Mass remains constant while weight depends upon gravity.

Answer

Mass and weight both remain constant.

Answer

Mass and weight both depend upon gravity.

Answer

Mass depends upon gravity while weight remains constant.

Question 56

The planets in our solar system revolve around the sun because

Accepted Answer

the sun has more mass than the planets.

Answer

the sun is older than the planets

Answer

the sun is hotter than the planets.

Answer

the sun produces more light than the planets.

Question 57

What is the NET force acting on the object.

(Hint: Consider the direction of the force applied and do some simple math)

Accepted Answer

0

Answer

10

Answer

5

Answer

-5

Question 58

Is the following object BALANCED or UNBALANCED according to the net force and simple math?

Accepted Answer

BALANCED

Answer

UNBALANCED

Question 59

A book is sitting on a table. Both the book and the table are still. We can say that the forces on these objects are

Accepted Answer

BALANCED

Answer

UNBALANCED

Answer

NON-CONTACT

Answer

FRICTIONAL

Question 60

Assume there is minimal friction b/c the sphere is on a smooth, level surface...

In what direction will the sphere travel based on the force applied?

Accepted Answer

To the left

Answer

To the right

Answer

Up because the ground applies a force

Answer

Down because gravity will pull it through the surface

Question 61

The illustration shows all the forces in Newtons (N) acting on a box.
With the combination of all the forces acting on the box results in a force acting on the box

Accepted Answer

To the right with a strength of 18 N

Answer

To the right with a strength of 10 N

Answer

To the left with a strength of 26 N

Answer

To the left with a strength of 8 N

Question 62

Each figure below shows a force measured in Newtons pushing on a block. If there are no other forces pushing on the block, in which case is the acceleration of the block greatest?

Accepted Answer

Question 63

A bus driving on the road during the winter drives onto an icy spot and begins to slide. A decrease in which of the following forces causes the bus to slide?

Accepted Answer

Friction

Answer

Thrust

Answer

Acceleration

Answer

Mobility

Question 64

Astronauts design an experiment to test the effect of force on an object. They know that one of the forces we experience on Earth is less than on the moon. Which force are the astronauts testing?

Accepted Answer

Gravity

Answer

Friction

Answer

Acceleration

Amplify Force/Motion EOM Review 23-24

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