Physics Chapter 2 Review

Flashcard maker : Lily Taylor
Copernicus
Which scientist was credited for formulating a model in which the Earth circles the Sun?
Galileo
Which scientist first introduced inertia?
property of matter
Inertia is defined as a ________________ ____ ________.
same speed
If no external forces acts on a moving object, it will continue moving at the ________ _________.
no force
The amount of force needed to sustain motion of a rock in outer space is ___ __________.
of friction
A hockey puck sliding across the ice finally comes to rest because ____ ________.
inertia
Which concept takes place when a tablecloth is quickly yanked beneath dishes resting on a table?
no longer gains speed
When a rocket ship gaining speed in outer space runs out of fuel, it ____ _________ ________ ________.
back
When you quickly jerk a cart forward that has a ball resting in the middle, the ______ of the cart hits the ball.
none of the above
Which is a vector quantity?
area
mass
volume
none of the above
10 N to the left
A brick pulled to the left with 15 N and to the right with 5 N experiences a net force of?
equal to her weight
If Nellie hangs from a horizontal bar that is supported by 4 vertical ropes, the tension in the ropes add _________ ___ _____ _______.
zero
The net force of any object in equilibrium is _____.
both of these
The equilibrium rule applies to:
objects or systems at rest
objects or systems in uniform motion in a straight line
both of these
none of these
equilibrium
A hockey puck sliding at constant velocity across the ice is in __________________.
in front of you
If you toss a coin straight upward in train that slows while the coin is in the air, the coin will land where?
in back of you
If you toss a coin straight upward in a train that gains speed while the coin is in the air, the coin will land where?
at rest
If you toss a coin straight upward in a train moving at a constant velocity, the coin will land as if you were ____ _______.
no adjustments
A gymnast performing somersaults in a high-flying plane moving at a constant velocity needs to make _____ _______________.

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