1. Which of the following is true about work?, A. Work is done only when an object moves in the direction of the applied force., B. Work is done even if an object does not move., C. work is the same as energy stored in an object., D. Work happens only when you lift an object upward., 2. Which of the following is an example of work being done?, A. Holding a backpack without moving it, B. Standing still, C. Pushing a chair across the floor, D. Watching a ball roll, 3. Which situation shows greater power being produced?, A. Carrying a box across the room at a steady speed, B. Holding the box without moving it, C. Lifting a box quickly to a shelf in 2 seconds, D. Sliding the box slowly across the floor, 4. Two people lift the same weight. Student A lifts it quickly, and Student B lifts it slowly. Who generates more power?, A. Student A, B. Both have the same power, C. Student B, D. Power cannot be determined, 5. Which statement is correct?, A. Doing work on an object can increase its energy., B. Work decreases energy in all cases., C. Work and energy are completely unrelated., D. Energy exists only when no work is done..

Be Work-Smart

af
Trykke
Integrere

Rangliste

Visuel stil

Indstillinger

Skift skabelon

)
Gendan automatisk gemt: ?