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Worksheetsg5 review
Total questions: 75
Worksheet time: 1hrs 14mins
A contact force is from
touching objects
far apart objects
not touching object
always a pull
A non-contact force is between
two objects that aren't touching
two objects that are touching
the ground and wheels
you and me
The three examples pictured are of
Non-contact Forces
Contact Forces
The force between the phone and the mount is a
contact force
non-contact force
The force between the two people through the rope is
Contact Pull
Non-contact Pull
Contact Push
Non-contact Push
Gravity is a
Contact Force
Myth
Non-contact Force
Friction is a
Contact Force
Myth
Non-contact Force
A contact force is from
objects physically touching
far apart objects
not touching object
always a pull
A non-contact force is between
two objects that aren't touching
two objects that are touching
the ground and wheels
you and me
The three examples pictured are of
Non-contact Forces
Contact Forces
The force between the phone and the mount is a
contact force
non-contact force
The force between the two people through the rope is
Contact Pull
Non-contact Pull
Contact Push
Non-contact Push
Gravity is a
Contact Force
Myth
Non-contact Force
Friction is a
Contact Force
Myth
Non-contact Force
Magnetic Force is an example of ____________ force.
contact
non-contact
balanced
unbalanced
______________ is a force that always acts in the direction opposite of motion.
applied
friction
gravity
normal
Applied force is an example of a _________________ force.
contact
non-contact
balanced
unbalanced
You are pulled to the surface of the earth due to the force of _________________
gravity
friction
normal force
contact force
The force that resists sliding between two touching objects is called _____________________
normal force
contact force
non-contact force
friction
An icy road has less __________ than a dry road.
friction
gravity
magnetism
water
Which is an example of a non-contact force?
elastic force
normal force
applied force
electric force
10. A ball rolls down from the top of a grassy hill, reaches the bottom of the hill, continues to roll, and then starts to slow down and comes to a stop. What forces caused this ball's motion?
Frictional force caused the ball to roll down the hill, but air resistance caused the ball to slow down and stop.
Magnetic force caused the ball to roll down the hill, but gravity caused the ball to slow down and stop.
The force of the hill caused the ball to roll down it, but gravity caused the ball to slow down and stop.
Gravity caused the ball to roll down the hill, but frictional force caused the ball to slow down and stop.
What keeps the planets in orbit around the sun?
gravity
friction
density
distance
Life jackets help people (and dogs) stay buoyant in water.
False
True
If the switch is OPEN, the circuit is:
Open, the bulb will not light up
Closed, the bulb will light up
If the circuit is closed, the bulb will light up.
True
False
This image shows an open circuit
True
False
Is this a battery or cell
Cell
Battery
Both Cell and battery are the same thing.
is there a gup is this circuit
yes
no
Is this circuit ganna light up
yes, its ganna light up
no, its not ganna light up
If you add a conductor to the circuit will it light up
yes, because metal can conduct electricity
no, because metal can't conduct electricity
What makes up an electric circuit?
Bulb and battery
Bulb, battery and switch
Bulb, battery and wire
Why is a battery important in an electrical circuit?
As a source of energy.
As a path for electricity to flow through.
As a connector to connect all parts of a circuit.
Why must parts of a circuit be properly connected before the bulb can light up?
To ensure that the bulb can light up.
To ensure that the battery can produce light in a closed circuit.
To ensure that electric current can flow through the closed circuit.
Look at the diagram. Why did the bulb not light up?
The bulb was fused.
The battery had not enough electric current to light up the bulb.
The switch was opened and prevented electric current from flowing through the circuit.
The diagram shows a complete circuit but the bulb did not light up. Why?
The plastic spoon is an insulator of electricity and prevented electric current from flowing through the circuit.
The plastic spoon is not connected properly and prevented electric current from flowing through the circuit.
The plastic spoon is a conductor of electricity and prevented electric current from flowing through the circuit.
Which of the following materials is an electrical conductor?
Silver spoon
Silver-colored plastic spoon
cooper spoon
wooden spoon
the filament in a bulb is made of
TUNGSTEN
COPPER
TIN
STEEL
IDENTIFY THE PICTURE
ELECTRIC BULB
GLASS BULB
CFL
FUSED BULB
A flowing electric current creates a magnetic field.
True
False
Opposites ________________, likes _______________.
attract, repel
repel, attract
An electromagnet can be created by wrapping a wire around a nail and attaching two ends of the wire to a battery. What happens in an electromagnet?
Electrical energy transforms into mechanical energy.
Electrical energy produces a magnetic field.
Mechanical energy transforms into electrical energy.
When you add more coils to an electromagnet, what happens to its strength?
It stays the same
It decreases
It increases
Many everyday objects rely on electromagnets to work.
True
False
Electromagnets =
Magnetic field only
Electricity + magnet
Electric Current only
Looking at the electromagnet pictured, will it pick up paper clips in its current state?
No, the circuit is currently open so there will be no magnetic field.
Yes, the circuit is closed so electric current will create a magnetic field.
No, a nail is not considered a magnet.
Yes, the nail has magnetic properties on its own.
Which statement BEST explains how energy changes to make the fan spin?
Electrical energy changes to heat energy.
Wind energy changes to electrical energy.
Heat energy changes to mechanical energy.
Electrical energy changes to mechanical energy.
Which of the following is a device that converts electrical energy into mechanical energy?
simple electric motor
generator
magnet
Which of the following is a device that converts mechanical energy into electrical energy?
simple electric motor
generator
magnet
From this picture of a wire, what would be considered the insulator?
The black material surrounding the wire
The wire itself
A _________ controls the flow of electrons by opening a closed circuit.
Wire
Battery
Switch
What are the basic components of a circuit?
Battery, wire, energy user (lightbulb)
Energy source, conductor, transformer
A loop that the electricity can flow through continuously
All options are correct
Which material is best to make a wire for use in a circuit?
Copper
Rubber
Wool
A magnetic __________ applies a push or pull without actually touching anything.
Field
Force
Atom
What is the main difference between an electromagnet and a regular magnet?
You can turn an electromagnet on and off. A regular magnet can't be turned off.
Electromagnets cause like sides to attract to eachother.
A regular magnet is always going to be stronger than an electromagnet.
Which electromagnet will pick up LESS paper clips?
A
B
Look at the picture: Which two magnets are attracting each other?
Magnets 1 and 3
Magnets 2 and 4
Magnets 1 and 4
Will this circuit work in its current state?
Yes, this circuit has all the necessary parts.
No, this circuit is currently considered "open" so electricity will not flow continuously.
Yes, this circuit will allow for electricity to flow continously throughout.
No, this circuit is missing a necessary part.
Which types of energy are made when the switch is closed?
thermal and light
sound and thermal
light and magnetism
magnetism and sound
