Friction and Gravity

QuizÂ by Jason

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14 questions
• Q1
What are two factors that affect FRICTION between surfaces?
mass and distance
mass and weight
surface type and how hard they are pushed together
30s
• Q2
What two factors affect GRAVITY between two objects?
mass and distance
mass and weight
type of surface and friction
30s
• Q3
What is mass?
the amount of matter in an object
how heavy something is
how hard gravity pulls an object
30s
• Q4
What is weight?
kilograms
pounds
a measure of gravity
30s
• Q5
What is friction?
the force that pulls objects toward each other
a measure of the force of gravity on an object
the force that surfaces exert on each other when they rub together
30s
• Q6
Which of these is an example of rolling friction?
a wheel rolling on the ground
rubbing sandpaper together
the hinge of a door that is oiled
30s
• Q7
Which of these is an example of sliding friction?
a stationary tree
the measure of gravity on an object
rubbing sandpaper together
30s
• Q8
Which of these is an example of fluid friction?
a fish in a boat
a fish on the dinner table
a fish swimming in a lake
30s
• Q9
Which of these is an example of static friction?
a sleeping hippo
a door hinge that has been oiled
a wheel rolling on a surface
30s
• Q10
What is the law of universal gravitation?
a law that states you should understand gravity
a new law passed by congress
a law that states there is gravity between all objects
30s
• Q11
What is gravity?
the moon revolving around the Earth
the force that pulls objects toward each other
a pull that only the Earth has
30s
• Q12
As the DISTANCE INCREASES what happens to the gravitational force?
it increases
it decreases
it stays the same
30s
• Q13
In which direction does friction act?
the opposite direction as the object's motion
the same direction as the object's motion
30s
• Q14
When the force required to push an object increases what happens?
friction decreases
friction increases
30s

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