Question |
Answer |
If you are driving up a curvy mountain road, would your displacement be greater than or less than your distance? |
Less than |
Motion is a change in |
position |
Does a line on a speed-time graph with a steep slope indicate a greater or a lesser speed? |
greater |
As a moving object's velocity decreases, its momentum |
decreases |
If two objects collided, what effect does that have on their momentum? |
When things hit each other it transfers |
To have ______________ an object must be moving. |
momentum |
Speed is the rate of change in |
distance |
To describe velocity, what two things do you need to know? |
speed & direction |
Acceleration is a change in |
velocity |
On a speed-time graph, a __________ line shows the change in speed zero. |
straight |
If you exert a force on an object in motion, you will change its |
direction |
What is the formula for calculating speed? |
S = D/T |
When object 'A' collides with object 'B' and bounces back, how does its final momentum compare to its starting momentum? |
same |
What is momentum a measure of? |
How hard it is to stop an object |
A cue ball hits another billiard ball and slows down. Why does the speed of the cue ball decrease? |
it transfers momentum to the other ball |
What kind of speed is measured at a particular moment or instant in time? |
instantaneous speed |
How can the displacement of an object be zero when the distance traveled was 1 mile? |
You could travel 0.5 miles and 0.5 back |
List three ways to accelerate an object. |
speed up, slow down, changing direction |
Be able to compare the slope of a line on an acceleration graph and determine faster and slower rates of acceleration. |
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Be able to calculate the speed of an object using information gotten from a graph. |
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Describe what will happen when a small ball moving in one direction strikes a large ball that is sitting still. What happens to the small ball? |
it will bounce back |
Describe what will happen when a small ball moving in one direction strikes a large ball that is sitting still. What happens to the large ball? |
it will move the direction of the small ball |
Review your math worksheet from S=D/T . There will be 4 to 5 problems on the test that are similar to theses problems. You will need to show your work, solve the problem, and have the right label. |
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A marathon runner can run 25 miles in 5 hours. What speed is she running? |
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On the European Autobahn, cars can drive up to 140 kph. How far can one of those cars get in 6 hours? |
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If an airplane travels at 400 miles per hour, how long would it take to travel 3600 miles? |
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Draw a speed-time graph that shows an increase in speed; one for a decrease in speed; and one for no change in speed. |
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