powerpoint jeopardy forces of motion lawscalculatin’ funnewton challenge hodgepodge 10 20 30 40 50
TRANSCRIPT
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Powerpoint JeopardyForces of Motion
Laws Calculatin’ Fun
NewtonChallenge
Hodgepodge
10 10 10 10 10
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Forces are described by their __________ &
__________
Strength & direction
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Greatest velocity that a falling object can reach.
Terminal Velocity
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This is a product of an object’s mass & velocity.
Momentum
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This is the tendency of an object to resist a change in motion.
Inertia
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This law says that gravity acts between all objects in the
universe due to their mass.
Law of Universal Gravitation
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This law states that an object at rest will stay at rest unless acted
on by an outside force.
Newton’s 1st Law of Motion
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As mass increases; inertia _______________.
Increases
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Force = mass x acceleration.
Newton’s 2nd Law
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What force causes a bouncy ball to rise back into the air after it has hit the ground?
Reaction Force
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Which law says that for every action there is an equal an
opposite reaction force.
Newton’s 3rd Law
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A speedboat pulls a 55-kg water-skier. The force causes the skier to accelerate at 2.0 m/s2. Calculate the net force that causes this acceleration.
110 Newtons
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Find the momentum of a 6 kg bowling ball that is moving at 10 m/s down the alley toward the pins.
60 kg m/s
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A marble at rest is dropped from a tall building. The marble hits the ground with a velocity of 98m/s. How long was the marble in the air?
10 seconds
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Find the acceleration of a 7kg mass if a force of 63 N is used to move it toward earth.
9 m/s/s
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If Mr. Incredible has a mass of 15kg on earth. What would his mass and weight be on Mars.
The acceleration due to gravity of mars is 3.8.
Mass = 15 kgWeight = 57 N
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___________ is when the only force acting on an object is
gravity.
Free Fall
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If two erasers were released at the same time but one was dropped and the other was thrown, which would hit the ground first.
The same time
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Kg x m/s is a unit of what?
Momentum
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As mass increases; acceleration ________________.
Decreases
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Objects at rest stay at rest will stay at rest unless __________
Acted on by an outside force
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Why don’t objects stay in motion forever?
Friction
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Which will hit the ground first a 2 kg golf ball or a 10 kg bowling ball?
They will hit at the same time
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Why do some objects on earth fall faster than others?
Air Resistance
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A rock at rest falls off a tall cliff and hits the valley below after 3. 5s. What is the rock’s velocity as it hits the ground?
34.3 m/s
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Why don’t action reaction forces cancel out?
They do not act on the same object