Work Power Conceptual Questions

Work, Energy, Power Conceptual Survey Quesitons

These questions are taken from Positive Physics, an online physics problem website. It's the best. You should go there immediately (use the link shown above) and sign up. Well worth the cost of the subscription.

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Positive Physics

Poll

2 students apply Equal forces for Equal distances on two carts as shown. Assume cart B has a greater mass than cart A. Neglect loss. Which student did more work?

• Student A

• Student B

• They did the same amount of work

Poll

2 students apply Equal forces for Equal distances on two carts as shown. Assume cart B has a greater mass than cart A. Neglect loss. Which cart would have a greater final Kinetic Energy

• Cart A

• Cart B

• They would have the same final KE

Poll

2 students apply Equal forces for Equal distances on two carts as shown. Assume cart B has a greater mass than cart A. Neglect loss. Which cart would have a greater final speed?

• Cart A

• Cart B

• They would have the same final speed

Poll

Two identical carts are released on ramps of equal distance but different heights. Neglect loss. Which cart has the greater initial GPE

• Cart A

• Cart B

• They have the same intial GPE

Poll

Two identical carts are released on ramps of equal distance but different heights. Neglect loss. In which case does the cart reach the bottom of the ramp in a shorter time

• Cart A

• Cart B

• They reach the bottom at the same time

Poll

Two identical carts are released on ramps of equal distance but different heights. Neglect loss. Which cart will have the greater final speed?

• Cart A

• Cart B

• They have the same final speed

Poll

Two carts are released on identical tracks as shown. Cart B has a greater mass than cart A. Neglect loss. Which cart has the greater initial GPE?

• Cart A

• Cart B

• They have the same initial GPE

Poll

Two carts are released on identical tracks as shown. Cart B has a greater mass than cart A. Neglect loss. Which cart reaches the bottom of the ramp in a shorter time?

• Cart A

• Cart B

• They reach the bottom at the same time.

Poll

Two carts are released on identical tracks as shown. Cart B has a greater mass than cart A. Neglect loss. Which cart has the greater final speed?

• Cart A

• Cart B

• They have the same final speed

Poll

Students of equal mass climb similar sets of stairs. Student A climbs in 6 sec, student B climbs in 3 sec. Who does more work?

• Student A

• Student B

• Both do the same amount of work

Poll

Students of equal mass climb similar sets of stairs. Student A climbs in 6 sec, student B climbs in 3 sec. Who exerted more power?

• Student A

• Student B

• Both exerted the same amount of power

Poll

Two students of equal mass climb flights of stairs of different heights in the same amount of time (5s). Which student did more work?

• Student A

• Student B

• They did the same amount of work

Poll

Two students of equal mass climb flights of stairs of different heights in the same amount of time (5s). Which student exerted more power?

• Student A

• Student B

• They exerted the same amount of power