Vocabulary
Graphing Speed
Calculations
Newton's Laws
Miscellaneous
100
Velocity is speed in a given _________.
direction
100
What does the graph of an object moving at constant speed look like?
A diagonal line.
100
If you traveled 60 miles in 20 minutes, what was your average speed?
3 miles/minute
100
What does Newton's 1st law say?
An object at rest will stay at rest, and an object in motion will stay in motion until acted upon by an unbalanced force.
100
____________ is the force that acts in the opposite direction of motion.
Friction
200
Motion is a change in ____________ over time.
position
200
What does the speed graph of an object that is stopped look like?
A flat (horizontal) line.
200
What is the momentum of a 1,000 kg truck going East @ 30 km/hr.
30,000 kg*km/hr
200
What does Newton's 3rd Law say?
For every action there is an equal and opposite reaction.
200
__________ is an object's resistance to changes in motion.
Inertia
300
_______________ is the rate of change in distance over time.
Speed
300
What does the speed graph of an object that is slowing down look like?
Curved down until horizontal (stopped)
300
If you travel 150 miles North on Route 95 and it takes 3 hours, what is your velocity?
50 miles/hour, North
300
What does Newton's 2nd Law say?
Force = Mass x Acceleration
300
What is negative acceleration called?
deceleration
400
__________ is a force that all moving objects have. It depends on mass and velocity.
Momentum.
400
What does the speed graph of an object that is speeding up look like?
Curved up
400
If you run 5 miles/hour for 1 hour, how far will you go?
5 miles
400
When you sit on your chair, your chair puts an equal force back up on you. Which of Newton's Laws does this illustrate?
Newton's 3rd.
400
What is the formula for acceleration
(Final velocity - Initial velocity) / Time
500
__________ is a rate of change of velocity.
Acceleration
500
What is the difference between constant speed and average speed.
Constant speed never changes while average speed is an average of all of the speeds an object travels during a trip.
500
If a car is traveling at 30 miles/hour, West and comes to a stop in 10 seconds, what is it's acceleration?
-3 miles/hour/sec
500
Another name for Newton's 1st law is the law of _______.
inertia
500
If you are driving North with a velocity of 50 miles/hour, and over the course of 4 minutes, you speed up to 70 miles/hour; what is your acceleration?
5 miles/hour/minute
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