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WorksheetsWeek 1 of 4th Grade Review
Total questions: 50
Worksheet time: 49mins
Name
Class
Date
1.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
2.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
3.
Movers slide a box down the ramp of a truck.
What helps slow the box as it slides to the bottom of the ramp?
What helps slow the box as it slides to the bottom of the ramp?
a)
friction
b)
gravity
c)
inertia
d)
magnetism
4.
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.
5.
Why is it important for basketball players to wear shoes with tread when playing?
a)
to increase the speed of the player
b)
to decrease the force between the player and the floor
c)
to increase friction between the floor and the player’s feet
d)
to decrease the amount of force needed for the player to move
6.
Which material should be used on a bicycle ramp to increase friction?
a)
shiny metal
b)
rough paper
c)
smooth wood
d)
wet plastic
7.
On which surface will a toy car travel the furthest?
a)
Carpet
b)
Polished Wood
c)
Ice
8.
On which surface will a toy sledge travel the least distance?
a)
Carpet
b)
Polished Wood
c)
Ice
9.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
10.
Which of the following is an example of trying to increase friction?
a)
Squirting oil into the door hinges
b)
Spreading grit on the icy roads
c)
Waxing the underneath of skis
11.
If you poured oil onto a wooden surface, the friction would ..
a)
be reduced
b)
be increased
c)
remain the same
12.
When most objects with smooth surfaces rub, there is less friction.
a)
True
b)
False
13.
Energy due to motion is ____________ energy.
a)
Potential
b)
Energy
c)
Kinetic
d)
Friction
14.
__________ is stored energy.
a)
Potential
b)
Kinetic
c)
None of the above
d)
All of the above
15.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
16.
Food has _________ energy.
a)
Potential
b)
Kinetic
c)
None of the above
d)
All of the above
17.
What kind of energy is in flowerpot sitting on a windowsill?
a)
Potential
b)
Kinetic
18.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
19.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
20.
What kind of energy is in a battery?
a)
Potential
b)
Kinetic
21.
What kind of energy is this?
a)
Potential
b)
Kinetic
22.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
23.
At which point is kinetic energy greatest?
a)
W
b)
X
c)
Y
d)
Z
24.
In order to INCREASE the potential energy of an object, you need to:
a)
put the object lower to the ground
b)
raise the object higher
25.
What is one problem with using a series circuit?
a)
It has a lot of series.
b)
If one goes down, they all go down!
c)
It doesn't work properly.
d)
There are no problems.
26.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
27.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
28.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
29.
A material in which electrons are not able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
30.
wood is a _____?
a)
conductor
b)
insulator
31.
Which statement is true?
a)
The light bulb will light up because the circuit is complete.
b)
The light bulb will light up because the circuit is broken.
c)
The light bulb will not light up because the circuit is complete.
d)
The light bulb will not light up because the circuit is broken.
32.
In a parallel circuit if one of the light bulbs burns out the rest _________.
a)
stop the flow of electricity
b)
can still light up
c)
will go out
d)
of the light bulbs burn out also
33.
Which best describes a parallel circuit?
a)
Electricity flows along one pathway.
b)
The flow of electricity comes from one source.
c)
Electricity flows along more than one pathway.
d)
The flow of electricity comes from more than one source.
34.
Which best describes a series circuit?
a)
It has two light bulbs.
b)
The same current flows through both light bulbs.
c)
It uses a single battery.
d)
The current is divided between the light bulbs.
35.
A fifth grade class constructed this circuit. Which of these objects most likely made the light glow when connected to points X and Y?
a)
plastic straw
b)
cotton string
c)
aluminum foil
d)
rubber eraser
36.
The electrician in this picture is wearing rubber gloves for protection. The purpose of the rubber gloves is to --
a)
keep the electrician dry
b)
create an electrical circuit
c)
produce electricity
d)
protect the electrician
37.
What material would be safest to use as an insulator to cover electrical wires?
a)
rubber
b)
tin
c)
aluminum
d)
water
38.
Which of these substances conducts electricity the best?
a)
wood
b)
brick
c)
copper
d)
plastic
39.
This instrument can be used to see if materials conduct electricity. Which of these groups contains items that could all conduct electricity to complete the circuit?
a)
rubber ball, plastic comb, nail
b)
paper clip, penny, screw
c)
cork, dollar bill, tweezers
d)
pencil, eraser, spoon
40.
When socks get stuck to towels in your dryer, this is an example of________________
a)
current electricity
b)
static electricity
41.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
42.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
43.
What happens when you touch a metal doorknob after rubbing your shoes on the carpet?
a)
The doorknob sends a burst of electric current into your body
b)
Millions of electrons go from your finger into the doorknob
c)
The doorknob sends millions of electrons into your finger
d)
our finger becomes negatively charged
44.
Which of the following is caused by static electricity?
a)
a stove getting hot when it is turned on
b)
a magnet being attracted to a refrigerator
c)
a lightning strike during a storm
d)
a light bulb coming on when a switch is turned on
45.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
46.
In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.
a)
wire, iron, electric
b)
electric, wire, iron
c)
iron, electric, wire
47.
Surrounding every magnet is a __________ __________.
a)
magnetic field
b)
electrical current
c)
another magnet
d)
an enemy
48.
Where is the magnetic field the strongest?
a)
East and west poles
b)
Left and Right ends
c)
North and South ends
d)
North and South poles
49.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
50.
Which of the following is NOT part of an electromagnet?
a)
Wire
b)
Iron
c)
Toothpick
d)
Power source
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