Forces%20

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Forces Motion Quiz
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Q1 What does Inertia really mean?
A How hard it is to make something move, stop
moving or change direction
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Q 2 I pull a cart with boxes across the floor.
The surface changes from carpet to tile. Why do I
have to pull/push harder on the carpet to move
the same cart?
A The carpet has more friction than the tile
floor.
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Q 3 Which graph shows an object moving slowly
(when compared to the other)
A Graph B (steeper lines mean faster motion)
Graph B
Distance
Distance
Graph A
Time
Time
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Q 4 A change in direction or speed is known as
_________
A Acceleration
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Q 5 If both of these football players have the
same mass, why is the one on the right falling
backwards
A Left hand player is pushing with more force
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Q 6 Which of Newtons 3 Laws of Motion explains
why objects with mass dont just start moving by
themselves?
A The First Law. An object at rest will stay at
rest unless an outside force acts upon it.
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Q 7 Which graph shows an object accelerating
(when compared to the other)?
A Graph A (changes in the slope show
acceleration)
Graph B
Graph A
Distance
Distance
Time
Time
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Q 8 If I want to accelerate an object with twice
as much mass as another object, what do I have to
do?
A Use twice as much force
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Q 9 If all the forces are in balance, what will
the motion of an object be?
A No change in motion (no acceleration)
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Q 10 What is the unit of measurement for Force?
A Newton (N)
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Q 11 Which of Newtons 3 Laws of Motion explains
why someone falls backward when punched really
hard?
A The Third Law. For every action there is an
equal and opposite reaction
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Q 12 Why does it take more force to pull a block
up a slope than just along the ground?
A Up the slope includes moving against friction
and gravity.