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WorksheetsG3_U2L3_What forces act from a distance?
Total questions: 20
Worksheet time: 5hrs 0mins
What is one example of a force that pushes or pulls an object without touching.
magnetism
contact forces
friction
Magnets can't attract any object except for another magnet.
True
False
What is an object with a magnetic force?
push
pull
a magnet
speed
Fill the blank. An ... ... measures the amount of electricity used by the people inside the buildings.
Electrical meter
thermometer
rain gauge
Electrical wires
Answer TRUE or FALSE:
Plastic is attracted by magnets.
TRUE
FALSE
What is Static Electricity?
is the change of the number on an electrical meter.
is a charge that builds up on an object
is a form of energy that appears in a magnet
Which of the following statement is NOT TRUE about Static Electricity?
works across a distance
is a charge that builds up on an object
Static charge can not attract or repel
Fill the blank. When electricity passes through wire wrapped around a piece of iron, it causes the metal to become....
magnetic
rubber
weaker
stronger
What happen if you place the N and S ends of two magnets near each other?
They will attract each other
The attracting force become weaker
The attracting force become stronger
You make a temporary magnet
What happen if you move the magnet farther from some metal clips?
Build-up electric charge moves from one object to another.
The attracting force becomes weaker
The attracting force becomes stronger
There would be no changes to attracting force
What happen if you attach an electric source to a wire coiled around a metal bolt?
Friction becomes weaker
Friction changes a lot
You will make a temporary magnet
Anna's ice cream cone tips over. Her ice cream falls to the floor . Which force caused it to fall?
magnetism
gravity
friction
electricity
Fill the blank. Electricity is a form of energy, it comes to your home from ...
petroleum
coal
energy-generating stations
What happen if when lightning strikes or a spark jumps?
Friction becomes weaker
Gravity becomes stronger
It will repel all the magnets
Build-up electric charges move from one object to another.
Fill the blank. ... carry electricity from the energy -generating station across great or short distances.
Electrical meters
Electrical lines
Electrical poles
When we observe the electrical meters. The number on it ...
Changes quickly
does not change
changes slowly
How can you make two magnets repel?
Place the opposite poles near each other.
Place a thick object between the magnets.
Place the same poles near each other.
Place the magnets in water or another liquid.
How could you tell if an object is magnetic?
The object changes color if a magnet is placed near it.
The object jumps if a magnet if placed near it.
The object sticks to a magnet placed near it.
The object pushes away from a magnet placed near it.
Which of the following statement is NOT TRUE?
A magnet is an object that attracts things made from certain metals
A magnetic knife holder pulls on knives to hold them in place
Refrigerators often have magnets in the doors to help keep them closed.
All magnets have the same shape
Which of the following statement is NOT TRUE?
Iron filings are small bits of iron
A magnetic force is strongest near a magnet's poles
Magnetic force is the combination of all the forces acting on an object
