SCI 214 DeVry Week 2 Quiz

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SCI 214 DeVry Week 2 Quiz

SCI 214 DeVry Week 2 Quiz

SCI214

 

SCI 214 DeVry Week 2 Quiz

Question 1. Question: (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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