Quiz about Science 8 Review

Question 1

How has the mass changed after the phase change?

Accepted Answer

It is the same

Answer

It has increased

Answer

It has decreased

Answer

none of the above

Question 2

Composed of all the water on or near the earth

Accepted Answer

Hydrosphere

Answer

Biosphere

Answer

Atmosphere

Answer

Geosphere

Question 3

A ____ is a scientific model with properties of elements.

Accepted Answer

periodic table

Answer

punnett square

Answer

compound diagram

Answer

dichotomous key

Question 4

Shredded paper is an example of a _____ change.

Accepted Answer

physical

Answer

chemical

Question 5

A burned piece of wood & ashes is an example of a _____.

Accepted Answer

chemical change

Answer

physical change

Question 6

Rust forming on a piece of metal is an example of a _____.

Accepted Answer

chemical change

Answer

physical change

Question 7

Which of the following is a compound?

Accepted Answer

CO2

Answer

Au

Answer

N

Answer

O

Question 8

A push or a pull that can move an object is a __________.

Accepted Answer

force

Answer

gear

Answer

lever

Answer

machine

Question 9

Which type of energy does the battery produce?

Accepted Answer

electrical

Answer

sound

Answer

light

Answer

mechanical

Question 10

What does this graph show?

Accepted Answer

As hours increase, temperature increases.

Answer

As hours increase, temperature decreases.

Answer

As hours decrease, temperature increases.

Answer

There is no relationship in this graph.

Question 11

When you stretch a rubber band, you are storing __________ energy.

Accepted Answer

potential

Answer

kinetic

Answer

none of the above

Answer

all of the above

Question 12

which point has the most potential energy

Accepted Answer

a

Answer

G

Answer

f

Answer

b

Question 13

What kind of energy is in a rock at the edge of a cliff?

Accepted Answer

Potential

Answer

Kinetic

Question 14

What kind of energy is in a moving skateboard?

Accepted Answer

Kinetic

Answer

Potential

Question 15

A basketball is being held in the hands of a player.

Accepted Answer

Potential

Answer

Kinetic

Question 16

Water

Accepted Answer

Renewable energy source

Answer

Nonrenewable energy source

Question 17

Coal

Accepted Answer

Nonrenewable energy source

Answer

Renewable energy source

Question 18

Nuclear

Accepted Answer

Nonrenewable energy source

Answer

Renewable energy source

Question 19

Wind

Accepted Answer

Renewable energy

Answer

Nonrenewable energy source

Question 20

Petroleum

Accepted Answer

Nonrenewable energy source

Answer

Renewable energy source

Question 21

Wood

Accepted Answer

Renewable

Answer

Nonrenwable

Question 22

A NONRENEWABLE energy resource formed from the remains of organisms that lived long ago.

Accepted Answer

Fossil fuels

Answer

Biomass

Answer

Hydroelectric of them

Answer

all of them

Question 23

How long a wave is

Accepted Answer

wavelength

Answer

crest

Answer

trough

Answer

electromagnetic spectrum

Question 24

The top of a wave

Accepted Answer

crest

Answer

trough

Answer

electromagnetic spectrum

Answer

wavelength

Question 25

Longest wavelength; TV, cell phones, MRI

Accepted Answer

radio waves

Answer

ultraviolet

Answer

microwaves

Answer

gamma rays

Question 26

Black light; too much causes cancer

Accepted Answer

ultraviolet

Answer

radio waves

Answer

microwaves

Answer

gamma rays

Question 27

Long wavelengths; bluetooth, radar, broadband, GPS

Accepted Answer

microwaves

Answer

radio waves

Answer

ultraviolet

Answer

gamma rays

Question 28

The part of the electromagnetic spectrum that we can see

Accepted Answer

visible light

Answer

microwaves

Answer

gamma rays

Answer

infrared

Question 29

Short, high energy rays used to see through things

Accepted Answer

X rays

Answer

gamma rays

Answer

microwaves

Answer

infrared

Question 30

What is energy?

Accepted Answer

the ability to do work

Answer

the ability to do nothing

Answer

the ability to change a tire

Answer

the variable you change

Question 31

What kind of energy is represented in this picture?

Accepted Answer

Thermal

Answer

Potential

Answer

Nuclear

Answer

Mechanical

Question 32

What kind of energy does this device use?

Accepted Answer

Electrical

Answer

Chemical

Answer

Thermal

Answer

Chemical

Question 33

What kind of energy is represented in the picture?

Accepted Answer

Chemical

Answer

Thermal

Answer

Sound

Answer

Nuclear

Question 34

Work is:

Accepted Answer

A transfer of energy by a force to move and object

Answer

Something you get paid for

Answer

Something you take home

Answer

Makes you sweat

Question 35

According to the Law of Conservation of Energy, energy cannot be _________ or ____________.

Accepted Answer

created, destroyed

Answer

destroyed, destroyed

Answer

created, saved

Answer

lost, found

Question 36

Which graph shows an object speeding up?

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 37

When all the forces on an object are equal and opposite, & the net force is zero, that's...

Accepted Answer

balanced forces

Answer

unbalanced forces

Answer

terminal velocity

Answer

reaction forces

Question 38

When an unbalanced force acts on an object, the force ______________________.

Accepted Answer

changes the motion of the object

Answer

is cancelled by another force

Answer

does not change the motion of an object

Answer

is equal to the weight of the object

Question 39

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 40

This person bought coffee and put it on the seat next to them. If they stopped quickly and the coffee spilled which law would that represent?

Accepted Answer

Newton's 1st Law

Answer

Newton's 2nd Law

Answer

Newton's 3rd Law

Science 8 Review

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