Physics Semester Exam

What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

Which runner won the race running at a constant velocity?

• A

• B

• C

What law of motion does this picture represent?

• Newtons 1st law
• Newtons 4th law 
• Newtons 3rd law 
• Newtons 2nd law

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What Newtons law does this picture represent

• Newtons 2nd law 
• Law of gravity 
• Newtons 1st law
• Newtons 5th law

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Where is the acceleration most negative?

• TV
• VW
• XZ

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An elevator moves from the basement to the tenth floor of a building. The mass of the elevator is 1000 kg and it moves as shown in the velocity-time graph below. How far does it move during the first three seconds of motion?

• 4m
• 6m
• 12m
• 20m

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An object accelerates according to the graph below. The object's change in velocity during the first three seconds of motion was:

• .66 m/s
• 1.0 m/s
• 3.0 m/s
• 4.5 m/s

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If you wanted to know the distance covered during the interval from t = 0 s to t = 2 s, from the graph below you would....

• read 5 directly of the vertical axis.
• find the area between that line segment and the time axis by calculation (5x2)/s.
• find the slope of that line segment by dividing 15 by 5.
• find the slope of that line segment by dividing 5 by 2.

At time t = 2 seconds, the velocity is:

• .4 m/s
• 2.0 m/s
• 2.5 m/s
• 5 m/s

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Here is a graph of an object's motion. Which sentence is a correct interpretation?

• The object is moving at a constant velocity. Then it slows down and stops.
• The object doesn't move at first. Then it rolls forward down a hill and finally stops.
• The object doesn't move at first. Then it moves backwards and then finally stops.
• The object rolls along a flat surface. Then it rolls forward down a hill, and then finally stops.