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quiz 1 unit 8
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what is the force between one object moving or rubbing against another object
friction
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Venus has a smaller mass than earth, so you would weigh less on venus because of gravity. true or false?
true
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give an example of a lever
seesaw
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When a book falls to the ground it is an example of gravity. True or false
True
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the place or object another object is moved to is called the____ point
reference
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a girl pusshing her wagon is an example of
muscular
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a ball rolling across the grass is an example of friction or muscular
friction
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a car turning right is an example of
acceleration
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if two people are arm wrestling and one person pushes the others over is it balanced or unbalanced
unbalanced
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give an example of a wheel and axle
door handle
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what is force
the ability to do work
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what do we call the time it takes for an object to go a certain distance called
speed
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would a basket full of groceries or an empty basket have more friction when pushed
full basket
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when does friction decrease
when the texture of an object is smooth and the surface area touching an object decreases
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a car turning left at a stop light is an example of acceleration or velocity
acceleration
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a ramp is an example of which simple machine
inclined plane
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give an example of balanced forces
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a compass pointing north is an example of magnetism or gravity
magnetism
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what is a change in velocity called
acceleration
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give an example of a pulley
flagpole
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What is the force between any two object with mass called
gravity
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what is a push or pull
force
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a car traveling at 45 mph going north is an example of
velocity
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If two dogs are tugging on a rope and one dog gets the rope from the other dog the forces are balanced. true or false
false
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what is velocity
speed in a certain direction
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