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Midterm Review

Total questions: 64

Worksheet time: 48mins

Name
Class
Date
1.
In the event of any lab emergency, who do you notify?
a)
nurse
b)

teacher

c)
friends
d)
principal
2.
Injuries and accidents should be reported:
a)
immediately
b)
only if serious
c)
in a few minutes
d)
at the end of the block
3.
In the event of broken equipment, what should you do?
a)
stop using the equipment and report it immediately
b)
continue using the equipment and report it immediately
c)
stop using the equipment and report it later
d)
continue using the equipment and report it later
4.
The correct way to move about the lab is to:
a)
run
b)
hurry
c)
walk
d)
skin
5.
A possible explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
6.

This variable in an experiment is the one being deliberately changed by the scientist.  It is the only variable that is different between groups.

a)
dependent variable
b)
independent variable
c)
data
d)
control group
7.

What is the variable that we are measuring and collecting data about in an experiment?

a)
Independent
b)
Dependent
c)
Control
d)
Experimental
8.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. The fact that we kept the light, plant, and water the same in each experiment are examples of ____________.
a)

an dependent variable

b)

an independent variable

c)

a control

d)

constants

9.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
10.
Testing a hypothesis often involves a(n):
a)
answer
b)
experiment
c)
problem
d)
safety check
11.
This step of the scientific method is an educated guess or a prediction. 
a)
Hypothesis
b)
Research
c)
Observation
d)
Conclusion
12.

____________________ is the storage of energy

a)

Chemical Energy

b)

Potential Energy

c)

Mechanical Energy

d)

Kinetic Energy

13.

Which of the following shows an example of Potential Energy?

a)

A football flying through the air

b)

Two kids high-fiving

c)

A rock sitting on top of a high ledge

d)

A flashlight shining brightly

14.

What is it called when two surfaces pass across one another creating heat?

a)

Thermal Energy

b)

Friction

c)

Motion Energy

d)

Photosynthesis

15.

When rolling a marble down a ramp when does it have the most potential energy?

a)

At the bottom of the ramp

b)

While traveling down the ramp

c)

While being lifted to the top of the ramp

d)

At the top of the ramp

16.

Energy is...

a)

feeling good

b)

the ability to do work or cause change

c)

the food chain

d)

looking at TV until you fall asleep

17.

Kinetic energy is...

a)

energy of a moving object

b)

you napping

c)

you at rest

d)

being still

18.
At which point(s) on the roller coaster is the gravitational potential energy at its maximum?
a)
A
b)
B
c)
C
d)
D
19.
At which point(s) on the roller coaster is the kinetic energy at its maximum?
a)
A
b)
B
c)
C
d)
D
20.
What does the Law of Conservation of Energy state?
a)
Energy cannot be created or destroyed
b)
Nothing can exchange energy
c)
Energy will increase over time.
d)
Energy will decrease over time.
21.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
22.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
23.
A change from one form of energy to another is called ___________.
a)
work
b)
power
c)
mechanical
d)
energy transformations
24.

What kind of energy does an object possess when it's resting on top of the hill?

a)

Potential Energy

b)

Chemical Energy

c)

Kinetic Energy

d)

All of the above

25.

What force causes a roller coaster cart to slow down the most?

a)

friction

b)

weight

c)

gravity

d)

air resistance

26.

A change from one form of energy to another

a)

energy conservation

b)

energy transformation

c)

potential energy

d)

kinetic energy

27.
Work is done when a force causes an object to ...
a)
move
b)
stay still
c)
slow down
28.

What is the force that causes objects to fall to Earth?

a)

Friction

b)

Gravity

c)

Magnetism

d)

Pressure

29.

When two objects rub together, what force do they produce

a)

Gravity

b)

Magnetism

c)

Friction

d)

Heat

30.
Like poles of a magnet do what?
a)
repel
b)
attract 
c)
nothing 
31.
What is a wire in a circuit wrapped around an iron core called?
a)
electromagnet
b)
generator
c)
electric motor
32.
Unlike poles of a magnet do what?
a)
repel
b)
attract
c)
nothing 
33.
What is a complete path through which electric charges can flow called?
a)
magnetic pole
b)
electric circuit 
c)
electric resistance
d)
magnetic field 
34.
What is the region of force around a magnet known as?
a)
magnetic field
b)
magnetic pole
c)
magnetic domain 
d)
lodestone
35.
Does this represent attraction or repulsion?
a)
attraction
b)
repulstion
36.
Does this show attraction or repulsion? 
a)
attract
b)
repel
37.
What part of a circuit stops the current?
a)
wire
b)
switch
c)
battery
d)
light
38.
What material is a good conductor?
a)
copper
b)
wood
c)
rubber
d)
plastic
39.
What material is an insulator?
a)
coper
b)
silver
c)
gold
d)
plastic
40.
What is true about magnets?
a)
opposite poles repel
b)
opposite poles attract
c)
only the north pole picks up nails
d)
only the north pole works
41.
A material through which electrons can easily flow. 
a)
insulators
b)
conductors
42.
This is an example of...
a)
crazy hair
b)
static electricity
c)
lightning
d)
insulator
43.
The two ends of a bar magnet are its
a)
Magnetic poles
b)
Insulators
c)
Circuits
d)
Irons
44.

What is the effect of one negatively charged object and one positively charged object coming close to each other.

a)

The objects repel each other.

b)

The objects attract each other.

45.
In which year did exactly 60 students have scholarships?
a)
2010
b)
2011
c)
2012
d)
2013
46.

What amount of sales make the company $2000 in profit?

a)

3000

b)

6000

c)

9000

d)

12000

47.

How much would 1 pound of fudge cost at the store?

a)

$2

b)

$4

c)

$6

d)

$3

48.

How many more potatoes were grown in 2011 than in 2009?

a)

5

b)

10

c)

15

d)

20

49.
The device used to raise a flag up a flag pole is an example of a 
a)
wheel and axle 
b)
lever
c)
inclined plane 
d)
pulley 
50.
An inclined plane wrapped around a rod forms this simple machine 
a)
lever
b)
pulley
c)
screw
d)
wedge 
51.
A seesaw is an example of a  
a)
wedge
b)
lever 
c)
inclined plane 
d)
pulley 
52.
This device
a)
wedge
b)
lever
c)
incline plane
d)
wheel and axle
53.
Name this simple machine. 
a)
Pulley
b)
Wheel and Axle
c)
Inclined Plane
d)
Lever
54.
Name this simple machine. 
a)
Wheel and Axle
b)
Lever
c)
Pulley
d)
Wedge
55.

An object that is at rest on top of a bookshelf has

a)

chemical energy

b)

chemical energy

c)

potential energy

d)

kinetic energy

e)

elastic energy

56.

Which letter shows the ball when it has THE MOST potential energy?

a)

A

b)

B

c)

C

d)

F

e)

G

57.

Which letter shows the ball when it has NO potential energy?

a)

B

b)

C

c)

D

d)

E

e)

F

58.

The Law of Conservation of Energy states:

a)

Energy can created or destroyed but not transformed

b)

Energy cannot be created or destroyed, it can only transformed

c)

Energy can't be created, destroyed or transformed

d)

Energy cannot be created or destroyed.

59.

What force causes a roller coaster cart to slow down the most?

a)

friction

b)

weight

c)

gravity

d)

air resistance

60.

Which form of energy is represented in this image?

a)

kinetic

b)

thermal

c)

potential

d)

solar

61.
A student created an electrical circuit, shown.

Which of the following statements is true about the circuit?
 
a)
The electrical circuit is working.
b)
The electrical circuit is open.
c)
The electrical circuit is complete.
d)
The electrical circuit is closed.
62.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
63.
Would would best complete this circuit?
a)
A wire
b)
A switch
c)
A battery
d)
A light bulb
64.

The _______________ is transformed into electrical energy inside the battery.

a)

chemical energy

b)

sound energy

c)

kinetic energy

d)

potential energy

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