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WorksheetsYear 7 Revision - Forces and Magnets
Total questions: 35
Worksheet time: 1hrs 6mins
Named after the famous scientist, I am the unit for measuring Force
(a)Which of the following is a contact force?
(a)
When a skydiver is falling through the air, what is the name of the force acting upwards
(a)Which of these is not a contact force.
Friction
Air resistance
Magnetism
Reaction Force
These forces are (a)
These forces are (a)
All magnets have two poles North and South poles
TRUE
FALSE
If pole are different (one is a south pole one is a north pole),then they will pull together or attract each other.
TRUE
FALSE
A magnetic force is a attraction between substances made of certain material such as iron, nickel, cobalt, and steel.
TRUE
FALSE
Magnets attract all objects
TRUE
FALSE
SELECT ALL THAT APPLY. Objects that a magnet will NOT attract.
Wood
Plastic
Rubber
What are the two poles on a magnet?
East
West
North
South
The magnetic poles on a magnet are the places where the force is the _________.
Weakest
Strongest
No change in force
If you break a magnet, each piece will have a north and south pole.
False
True
What happens when like poles of two magnets are brought near each other?
Repel or push away from each other
Attract
What happens when opposite poles of two magnets are brought near each other?
Repel or push away from each other
Attract
What name is given to a force that acts on an object without touching it?
Both B and C
Contact force
Non-contact force
The entire region surrounding a magnet is known as the:
Magnetic Domain
Lodestone
A Compass
Magnetic Field
As you moved the magnet closer to the compass...
the compass needle did not move
the compass needle moved
the compass needle started spinning
A force is a
person
push or a pull
rock
plant
A force that slows or stops motion when objects are touching.
Lightning occurs because ___.
the negative charges at the bottom of clouds are attracted to the positive charges on the ground.
the positive charges at the bottom of clouds are attracted to the negative charges on the ground.
the positive and negative charges inside clouds are attracted to each other
All of these reasons are correct.
Iron, Nickel and cobalt are all (a) materials
(a)
An electromagnet can only work if it has _____________
magnetic poles
a switch
electric current
a bar magnet
How is an electromagnet different from a bar magnet?
An electromagnet has only one pole
An electromagnet does not attract iron
an electromagnet can be turned on and off
an electromagnet does not have a magnetic field
