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PHYSICAL SCIENCE REVIEW

Total questions: 50

Worksheet time: 27mins

Name
Class
Date
1.

Oliver stepped onto a three-car subway train with standing room only. What caused him to fall backward into other riders when the train suddenly moved forward?

a)

He was riding in the last car of the train.

b)

He had heat exhaustion from the overcrowded train.

c)

Oliver's body resisted a change in the subway train's inertia.

d)

Oliver's body was responding to the force of gravity.

2.

Which law of motion predicts that a moving hockey puck will continue to move in the same direction at the same speed unless acted upon by another force?

a)

Newton's First Law of Motion

b)

Newton's Second Law of Motion

c)

Newton's Third Law of Motion

d)

Newton's Law of Universal Gravitation

3.

The diagram below show the forces acting on a soccer ball.


In which of the diagrams will the ball remain motionless?

a)

W

b)

X

c)

Y

d)

Z

4.

In the diagram below, a girl sits on a sled and slides down a hill of snow. Which arrow represents the force of friction opposing the motion of the sled down the hill?

a)

Arrow A

b)

Arrow B

c)

Arrow C

d)

Arrow D

5.

Which of these examples best illustrates Newton's Second Low of Motion?

a)

A 100 Ib boy has twice as much inertia as a 200 Ib boy.

b)

A truck needs a more powerful engine than a small car.

c)

A hockey puck slides easily across the ice.

d)

A satellite stays in orbit for a long time.

6.

Which setup below would require the least force to lift a 100-gram mass a distance of 10 centimeters?

a)
b)
c)
d)
7.

According to Newton's Third Law of Motion, if Mike pushes down on the springboard to being his dive, what is the reaction force?

a)

Mike splashing into the water

b)

The springboard pushing Mike into the air

c)

The height of the water when Mike enters the water

d)

The sound the board makes as he pushes into the air

8.

Ana pushed on a big rock in her back yard. She was unable to get it to move because she did not -

a)

apply enough force

b)

have a good grip on the rock

c)

have enough mass

d)

weigh enough

9.

Many bicycles use a hand brake to control their speed. When the brake is engaged, a rubber pad presses against the tire. What force of motion does the hand brake rely upon to slow the bicycle?

a)

Gravity

b)

Friction

c)

Electricity

d)

Magnetism

10.

Which of the following situations is an example of Newton's third law of motion?

a)

A boy jumping on a trampoline

b)

A boy falling forward when a bus stops

c)

A chair sitting on the floor

d)

An apple falling from a tree

11.

In a head-on collision, a person who is not wearing a seat belt continues to move forward at the original speed of the car because of -

a)

weight

b)

mass

c)

gravity

d)

inertia

12.
Two girls are pulling on opposite ends of a thick rope. Both girls pull on the rope with the same force but in opposite directions. If both girls continue to pull with the same force, what will most likely happen? 
a)
One girl will pull the other toward her.
b)
Both girls will stay in the same place. 
c)
Gravity will cause the rope to sag. 
d)
The rope will break.
13.
 Alesia is taking an all­ day ride on her bicycle. The graph shows how far she is from home at different times during her ride.  During which time period is Alesia moving fastest?
a)
0–1 hours 
b)
3–4 hours 
c)
4–5 hours
d)
6–7 hours 
14.
The graph shows the motion of four cars. All four cars are moving east.   
Which car has a constant velocity? 
a)
1
b)
2
c)
3
d)
4
15.
 If an unbalanced force acts on a stationary object, the object will:.
a)
remain stationary
b)
move away from the force
c)
accelerate in the direction of the force
d)
accelerate in the opposite direction of the force
16.

The ability to do work or cause change.

a)

work

b)

force

c)

motion

d)

energy

17.

A push or a pull.

a)

work

b)

force

c)

motion

d)

energy

18.

What does letter C represent

a)

object providing force

b)

object receiving force

c)

gravity

d)

friction

19.

What does letter B represent

a)

object providing force

b)

object receiving force

c)

gravity

d)

friction

20.

The force that attracts objects to the center of the Earth

a)

Friction

b)

Air resistance

c)

Motion

d)

Gravity

21.

This is a type of mixture where one substance dissolves into another

a)

Solution

b)

Miscibility

c)

Compound

d)

Solubility

22.

The substance that does the dissolving

a)

Solute

b)

Solvent

c)

Solution

d)

Miscibility

23.

The substance getting dissolved

a)

Solvent

b)

Solute

c)

Solution

d)

Mixture

24.

This is an example of a

a)

Solution

b)

Mixture

25.

This is an example of a

a)

Solution

b)

Mixture

26.
You know that a substance has dissolved when it-
a)
becomes a solid
b)
produces condensation and has water droplets 
c)
spreads evenly throughout a liquid
27.
If I added 27 grams of salt to water and separated the solution with a hot plate, what amount of salt would be left behind?
a)
20 grams
b)
0 grams
c)
27 grams
d)
10 grams
28.
If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?
a)
Filter
b)
Screen
c)
Magnet
d)
Evaporation
29.
What happens when sand and water are mixed together?
a)
sand will settle to the bottom
b)
water will change physical properties
c)
the cup will get really cold
30.

Sand and gravel may be separated from each other by using

a)

a filter funnel

b)

a sieve

c)

an evaporating basin

d)

distillation

31.

Lemonade is a special mixture called a

a)

substance

b)

solution

c)

plasma

d)

ingredient

32.

To separate the sugar and lemonade, what method should you use?

a)

filtration

b)

sorting

c)

magnet

d)

boiling

33.

This type of mixture has large enough particles that you can see the different types of particles.

a)

Homogeneous

b)

Heterogeneous

c)

Colloid

d)

Solution

34.

Pick all of the physical properties of a rubber band:

a)

Elasticity

b)

Reflectivity

c)

Oval Shape

d)

Conductivity

35.

Which phrase describes a physical change?

a)

Cake baking

b)

Torn paper

c)

Gas bubbles rising after chemicals together

d)

The smell of food rotting

36.

Which of the following would be examples of a chemical change? Pick all that apply.

a)

Baking cookies

b)

Chopping wood

c)

Burning wood

d)

Food spoiling

e)

Breaking glass

37.

________ is the ability to dissolve in water.

a)

Conductivity

b)

Magnetism

c)

Solubility

d)

Reflectivity

38.

How can we separate a solution?

a)

By freezing it

b)

Melting it.

c)

By heating it so that the solution evaporates.

d)

We can't.

39.
a)

solvent

b)

solute

40.
a)

solvent

b)

solute

41.

When will the forces of gravity between two objects be the GREATEST?

a)

when the masses of both objects are small and the objects are far apart

b)

when the masses of both objects are large and the objects are close together

c)

when the masses of both objects are small and the objects are close together

d)

when the masses of both objects are large and the objects are far apart

42.

When you drop a hammer and a feather, why does the feather fall slower?

a)

air resistance causes the feather to slow down

b)

gravity pulls harder on the hammer than the feather

c)

gravity pulls harder on the feather than the hammer

d)

air resistance causes the hammer to fall slower

43.
A person would weigh less on on the Moon than on the Earth because . . .
a)
Moon has more mass, and therefore more gravity
b)
Moon has less mass, and therefore more gravity
c)
Moon has more mass, and therefore less gravity
d)
Moon has less mass and therefore less gravity
44.

Which model has greater gravitational attraction.

a)

model A

b)

model B

c)

both models have equal gravity

45.
Which energy type?
A marble rolling down the aisle of your science classroom
a)
Potential
b)
Kinetic
46.
a)
Potential Energy
b)
Kinetic Energy
47.
a)
Potential Energy
b)
Kinetic Energy
48.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful
49.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
50.
How would the absence of friction affect a marble traveling on a long, straight path?
a)
The marble’s speed would decrease.
b)
The marble’s speed would increase.
c)
The marble would stop immediately. 
d)
The marble would remain at constant speed.

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