Conceptual Physics
Name_________________________
Mrs. Skrzycki
Block_____________
Energy Video
Answer in COMPLETE Sentences
1.
Will a cannonball travel further if shot from a longer cannon?
2.
How does the product of force and distance for lifting the ball straight up
compare to the product of force and arc-distance for pulling the ball at an
angle? The same final distance is reached in both instances.
3.
Explain why the bowling ball never reaches its original starting point.
4.
How does a machine change the force?
5.
A car has 40,000,000 Joules of energy available in its gas tank. Assuming a
force of 1,000 Newton available to move the car and neglecting the energy
lost as heat, how far will the car travel?
6.
Is a car’s gasoline mileage affected when the car’s accessories are being used?
7.
If a car travels twice as fast, how much farther will it skid? If the car is
traveling three times as fast, how much further will it skid?
8.
Next-time question: Explain why the “cut” ball bounces higher than its initial
position.
Follow-up Questions:
1.
If 100 Joules are required to draw a “bow”, what is the kinetic energy of the
“arrow” at the moment of release?
2.
Car #1 moves at 60 km/h. Car #2 has half the mass of car #1 and moves at 120
km/h.
a.) Which car has more momentum?
b.) Which car has more kinetic energy?