NEW
Font size
S
M
L
XL
Worksheets8th grade physical science review
Total questions: 40
Worksheet time: 28mins
Name
Class
Date
1.
____________ is a push or pull on an object.
a)
Motion
b)
Force
c)
Speed
d)
Velocity
2.
Force is measured in ________.
a)
Joules
b)
Kilograms
c)
Pounds
d)
Newtons
3.
As the distance between two magnets increases, the magnetic force between them __________.
a)
Increases
b)
Decreases
c)
Stays the same
d)
Increases and then decreases
4.
As the mass of an object increases, the force of gravity ___________.
a)
Increases
b)
Decreases
c)
Stays the same
d)
Increases and then decreases
5.
An object that is balanced will have a net force of:
a)
0 N
b)
10 N
c)
100 N
d)
1000 N
6.
An object at rest will stay at rest and an object in motion will remain in motion unless acted upon by an unbalanced force.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
7.
North Pole on a magnet will be repelled by the ___________.
a)
North Pole
b)
South Pole
8.
What is the net force on the object?
a)
10 N right
b)
500 N right
c)
950 N right
d)
50 N left
9.
The tendency of a stationary object to resist being put into motion is known as
a)
acceleration
b)
inertia
c)
weight
d)
velocity
10.
Energy can not be created or destroyed, only converted from one form to another.
a)
true
b)
false
11.
Energy due to motion is ____________ energy.
a)
Potential
b)
Energy
c)
Kinetic
d)
Friction
12.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
13.
__________ is stored energy.
a)
Potential
b)
Kinetic
c)
None of the above
d)
All of the above
14.
What kind of energy is in flowerpot sitting on a windowsill?
a)
Potential
b)
Kinetic
15.
What kind of energy?
a)
Thermal
b)
Electrical
c)
Mechanical
d)
Radiant
16.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Mechanical
d)
Nuclear
17.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
18.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
19.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
20.
The purpose of the panels is to change solar energy into ____________.
a)
light energy
b)
electrical energy
c)
chemical energy
d)
mechanical energy
21.
Which of the following is a fossil fuel?
a)
Wind
b)
Coal
c)
Solar
d)
Biomass
22.
Warming hand over a radiator.
a)
Conduction
b)
Convection
c)
Radiation
23.
The form of energy food contains is which of the following?
a)
chemical
b)
potential
c)
radiat
d)
electrical
24.
Eggs cooking in a frying pan.
a)
Conduction
b)
Convection
c)
Radiation
25.
Snowman melting in the sun.
a)
Conduction
b)
Convection
c)
Radiation
26.
Water boiling in a kettle.
a)
Conduction
b)
Convection
c)
Radiation
27.
Ice cubes keeping lemonade cold.
a)
Conduction
b)
Convection
c)
Radiation
28.
Making toast in a toaster.
a)
Conduction
b)
Convection
29.
What is the unit used to record MASS?
a)
gram
b)
liter
c)
yard stick
d)
beaker
30.
Which of the following IS NOT safe to do in a lab?
a)
if you don't know what something is, just smell it
b)
wash your hands after a lab
c)
never reach across an open flame
d)
know where the safety equipment is and how to use it
31.
Which of the following is the BEST protection for your eyes in a lab?
a)
safety apron
b)
safety googles
c)
safety gloves
32.
Determine the number of protons in this atom.
a)
11
b)
22
c)
22.990
d)
44
33.
What element has the atomic # of 29?
a)
carbon
b)
cobalt
c)
copper
d)
calcium
34.
There are always an equal number of protons and __________ in an atom.
a)
electrons
b)
neutrons
c)
mass
d)
elements
35.
In this example, what information does the number 6 tell us?
a)
element name
b)
atomic number
c)
atomic symbol
d)
atomic mass
36.
In this example, what information does the C tell us?
a)
element name
b)
atomic number
c)
atomic symbol
d)
atomic mass
37.
All mater is composed of __________.
a)
compounds
b)
atoms
c)
water
d)
H2O
38.
What is true of burning paper
a)
it is a physical change
b)
it is a chemical change
c)
it produces mass
d)
mass is destroyed
39.
A change that results in new substances being formed
a)
physical
b)
locational
c)
chemical
d)
radioactive
40.
What kind of energy is required for photosynthesis to occur?
a)
Electrical Energy
b)
Mechanical Energy
c)
Solar Energy
d)
Thermal Energy
Reset
