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Force
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When pushing a refrigerator across the floor you need to overcome the force of _______?
Friction
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When a person is sitting on a chair which force will the upward arrow represent?
normal force
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A force is a __________ and _________
Push and pull
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Which diagram can be seen in the image?
force diagram
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The engine of an aeroplane creates which force that allows the aeroplane to be in the sky?
Thrust
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Can force stop moving objects?
yes
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What do equal arrows on a force diagram diagram indicate?
The strength of the forces are equal.
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What will happen if the force of gravity on a boat is greater than upthrust?
The boat will sink.
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Which force pushes objects upwards in water?
Upthrust
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Who discovered gravity?
Sir Isaac Newton
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Which force does the upward arrow indicate?
air resistance
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Name any one non-contact force.
gravity or magenetism
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look at the image and identify the force indicated by the arrow
Air resistance/ drag
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Which force is used when a person pushes a trolley?
Applied force
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Does friction cause wear and tear of the objects?
Yes
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Observe the picture and identify the force.
Gravity
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Is the gravity of the moon the same as the gravity on Earth?
No
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What do we use inorder to reduce friction?
Lubricant
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