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Directions: Briefly discuss the problem below. In answering, explain the physics of
your proposed method. Be sure to include all of Newton’s Laws of
Motion in your answer.
A space station worker found herself floating free 100 meters from the space
station because her safety line became unhooked. Attached to her space suit
were her unhooked safety line, her tool belt and tools, and her oxygen tank.
How could she get back to the space station without calling someone for
help?
Directions: Briefly discuss the problem below. In answering, explain the physics of
your proposed method. Be sure to include all of Newton’s Laws of
Motion in your answer.
A space station worker found herself floating free 100 meters from the space
station because her safety line became unhooked. Attached to her space suit
were her unhooked safety line, her tool belt and tools, and her oxygen tank.
How could she get back to the space station without calling someone for
help?
Walking is something that we do every day without thinking about it. Very
simple daily activity and straight forward. Try to observe when you walk inside your
house. Put one foot in front of the other and you move. What forces have to do with
walking?Thus equal and opposite reaction applied?
While driving down the road, a firefly strikes the windshield of a bus and
makes a quite obvious mess in front of the face of the driver. This is a clear case of
Newton's third law of motion. The firefly hit the bus and the bus hits the firefly.
Which of the two forces is greater: the force on the firefly or the force on the bus?
Consider the following three examples. One of the forces in the mutual
interaction is described; describe the other force in the action-reaction force
pair.
A. A boy pulling something
B. A bowling ball hitting pins
C. Flying balloon filled with helium
Materials: 2 rubber bonds and ruler/ tape measure
Procedure:
1. Tie the two rubber bond together.
2. Each person should pull back the end of the rubber bond. Record the two
readings using a ruler or tape measure.
Think about it:
1. What did you notice about the readings in step 2 to 4?
2. What can you conclude about the pair of forces in each situation?
Materials: 2 rubber bonds and ruler/ tape measure
Procedure:
1. Tie the two rubber bond together.
2. Each person should pull back the end of the rubber bond. Record the two
readings using a ruler or tape measure.
Try to observe somebody in your place in a bicycle and ask to turn to the right
suddenly, which way does the body go and why?
A physics major is cooking breakfast when she notices that the frictional force
between her steel spatula and Teflon frying pan is only 0.200 N. Knowing the
coefficient of kinetic friction between the two materials, she quickly calculates
the normal force. What is it?
___________________________________
Fill in the blanks. Write your answer on the provided answer sheet.
An object undergoing uniform circular motion has an acceleration pointed at the
_____________ although the speed is ___________________. The time it takes to complete one full circle is called _________________________.
