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Devry SCI 214 Week 2 Quiz Latest
(TCO 2) A cannonball is fired straight up at 50 m/s. Neglecting air resistance, when it returns to its starting point, its speed is __________.
50 m/s
more than 50 m/s
less than 50 m/s
depends on how long it is in the air
Question 2. Question :
(TCO 2) Acceleration occurs when an object undergoes _________.
a speed increase
a speed decrease
a change in the direction of travel
CORRECT all of the choices are correct
Question 3. Question :
(TCO 3) Which quantity has the greatest influence on the amount of kinetic energy that a large truck has moving down the road?
Mass
Velocity
Size
Weight
Question 4. Question :
(TCO 3) Most energy leaves the Earth in the form of ________.
nuclear energy
kinetic energy
chemical energy
radiant energy
Question 5. Question :
(TCO 3) Which path would result in more work accomplished in moving a box to the same spot on the table?
A
B
C
All would be equal.
Question 6. Question :
(TCO 2) What are Newton’s Three Laws of Motion?
Question 7. Question :
(TCO 3) What is work? How much work needs to be done to lift a 500 kg mass from the ground to a height of 20 meters?
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Devry SCI 214 Week 2 Quiz Latest
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