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CHECKPOINT #3 6th grade

Total questions: 78

Worksheet time: 1hrs 11mins

Name
Class
Date
1.

Baking Cookies

a)

Physical Change

b)

Chemical Change

2.

Lighting a Match

a)

Physical Change

b)

Chemical Change

3.

Melting Ice Cream

a)

Physical Change

b)

Chemical Change

4.

Popping Popcorn

a)

Physical Change

b)

Chemical Change

5.

Blowing up a balloon

a)

Physical Change

b)

Chemical Change

6.

Cooking Pancakes

a)

Physical Change

b)

Chemical Change

7.

Crumpling Paper

a)

Physical Change

b)

Chemical Change

8.

Slicing Bread

a)

Physical Change

b)

Chemical Change

9.

Rusting Nail

a)

Physical Change

b)

Chemical Change

10.

Cutting a banana

a)

Physical Change

b)

Chemical Change

11.

Dying your hair blonde

a)

Physical Change

b)

Chemical Change

12.

Evaporating Water

a)

Physical Change

b)

Chemical Change

13.

Burnt toast

a)

Physical Change

b)

Chemical Change

14.

Adding baking soda to vinegar

a)

Physical Change

b)

Chemical Change

15.

Bending a metal rod

a)

Physical Change

b)

Chemical Change

16.

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

a)

applied

b)

friction

c)

gravity

d)

normal

17.

An icy road has less __________ than a dry road.

a)

friction

b)

gravity

c)

magnetism

d)

water

18.

What keeps the planets in orbit around the sun?

a)

gravity

b)

friction

c)

density

d)

distance

19.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
20.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
21.

Is the force usually exerted by a surface on an object that is resisting against it.

a)

Friction

b)

Normal force

c)

Elasticity

d)

Tension

22.

what force is pulling the apple down?

a)

gravitational force

b)

tension

c)

normal reaction

23.

what is the force used to attract the scarp iron?

a)

magnetic force

b)

tension

c)

electric force

d)

friction

24.

what is the force shown in the picture?

a)

magnetic force

b)

electric force

c)

applied force

25.

Two forces are pushing on the cart with the SAME force. Which of the following best describes the forces and motion of the cart?

a)

Mr. SSSSSSSSS

b)

Balanced Forces

c)

Net Force

d)

25 N

26.

How will this object move?

a)

It won't move.

b)

It will move to the right.

c)

It will move to the left.

d)

It will move up.

27.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
28.

What is the net force?

a)

30 N left

b)

25 N right

c)

5 N left

d)

55 N right

29.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
30.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
31.

Newtons law states that for every action, there is an_________ reaction

a)

unequal and opposite

b)

stronger and opposite

c)

equal and similar

d)

equal and opposite

32.

Force always come in________

a)

waves

b)

triplets

c)

pairs

33.

When a heavy football player and a light one run into each other, who exerts more force

a)

The light one

b)

Their force are equal

c)

The heavy one

34.

The forces in a force pair are in _______ direction

a)

opposite

b)

same

35.

When a small car pushes a big truck, the truck applies an equal and opposite force on the car.

a)

False

b)

True

36.

Force do not occur in pairs

a)

False

b)

True

37.

You can't exert a force on anything unless it also exert a force on you

a)

False

b)

True

38.

When a small car pushes a big truck, the truck applies an equal and opposite force on the car.

a)

False

b)

True

39.

Action reaction forces never cancel each other out because

a)

They act on different objects.

b)

They act on the same objects

c)

They do not act on objects.

40.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
41.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
42.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
43.
At which point is potential energy greatest
a)
W
b)
X
c)
Y
d)
Z
44.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
45.
It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes
a)
Newton's first law, the law of inertia
b)
Newton's second law, the law of acceleration
c)
Newton's third law, the law of action reaction 
d)
The law of universal gravitation
46.
The formula 
? = mass x acceleration
or 
? = m x a 
is used to find 
a)
Force
b)
Velocity
c)
Momentum
d)
Gravity
47.
a)
1st
b)
2nd
c)
3rd
48.

Answer is 2nd

a)
1st
b)
2nd
c)
3rd
49.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
50.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
51.

Which has the most gravitational potential energy?

a)

A

b)

B

c)

C

d)

F

e)

G

52.

Which has the most gravitational potential energy...

A or B?

a)

A

b)

B

c)

They are the same

53.

What is the force that is pulling a skydiver towards the Earth?

a)

Elastic Force

b)

Electrical Force

c)

Magnetic Force

d)

Gravitational Force

54.
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
a)
Chemical to light
b)
Electrical to chemical
c)
Electrical to light
d)
Chemical to electrical
55.
Which of the following shows an energy transformation from chemical energy to electrical to light energy?
a)
A bolt of lightning lights the night sky.
b)
A candle glows brightly in the dark.
c)
A fire in a fireplace lights up a room.
d)
A battery causes a flashlight to shine.
56.
The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —
a)
solar
b)
light
c)
thermal
d)
mechanical
57.
Energy transformations occur when...
a)
energy is created through conduction
b)
energy changes from one form to another
c)
two forces slide together that are touching
d)
a chemical reaction takes place
58.
A television works by transforming electrical energy into what other kinds of energy?
a)
Light, thermal, and sound
b)
Thermal, chemical, and solar
c)
Sound, mechanical, and electrical
d)
Light, chemical, and mechanical
59.
Can you create energy?
a)
Yes
b)
No
60.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
61.
what type of energy is stored in a battery?
a)
electrical
b)
chemical
c)
thermal
d)
mechanical
62.

Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?

a)

chemical to mechanical to electrical to radiant

b)

radiant to electrical to sound

c)

chemical to radiant to mechanical to electrical

d)

electric to radiant to chemical

63.

Thermal energy is also known as

a)

light

b)

heat

c)

radiation

64.

Light energy is also known as

a)

radiant energy

b)

thermal energy

c)

heat energy

d)

nuclear energy

65.

Most of the world's energy is solar. Solar energy is energy from the

a)

Earth

b)

Solar panels

c)

Sun

d)

Moon

66.

What is geothermal energy?

a)

Energy from the Sun

b)

Energy made by wind spinning a turbine

c)

Energy collected using the heat of the Earth

d)

Energy collected by a hamster running on a wheel connected to a generator

67.

Organisms that can trap sunlight and turn it into the sugar glucose are called?

a)

Consumers

b)

Producers

c)

Tertiary consumers

d)

Decomposers

68.

What is another name for producers?

a)

Consumers

b)

Autotrophs

c)

Secondary Consumers

d)

The Sun

69.

In most ecosystems energy first enters as

a)

Darkness my old friend

b)

Water

c)

Hamburgers

d)

Sunlight

70.

The process that uses sunlight to convert carbon dioxide and water to sugar is called?

a)

Respiration

b)

Generation

c)

Evolution

d)

Photosynthesis

71.

One path that energy can travel through an ecosystem is called?

a)

Leveling

b)

Food Chain

c)

Eating

d)

Mechanical Transfer

72.

All the ways that energy can move and be transferred through an ecosystem is called?

a)

Food Chain

b)

Spider Web

c)

Gold Chain

d)

Food Web

73.

Each organism that gets its energy from producers are called?

a)

Primary Consumers

b)

Primary Producers

c)

Secondary Consumers

d)

Primary Decomposers

74.

About how much energy is actually transferred from each level

a)

100%

b)

25%

c)

10%

d)

50%

75.

In a food web the energy lost is usually in the form of?

a)

Sound

b)

Heat

c)

Light

d)

Gas

76.

In this food chain the owl is a?

a)

Producer

b)

Primary consumer

c)

Tertiary Consumer

d)

Autotroph

77.

In this food chain the grass is a?

a)

Consumer

b)

Autotroph

c)

Decomposer

d)

Secondary Consumer

78.

I eat the grass in the field and I am scared of the birds eating me. I am probably a?

a)

Producer

b)

Autotroph

c)

Primary consumer

d)

Tertiary consumer

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