In physics, work is done when:, A. An object is moving without a force, B. A force causes an object to move a distance, C. An object is lifted but does not move, D. Energy is stored in an object, 2. Which equation is used to calculate work done?, A. Work = force ÷ distance, B. Work = distance ÷ force, C. Work = force × distance, D. Work = power × time, What is the unit of work done?, A. Newton (N), B. Metre (m), C. Joule (J), D. Watt (W), 4. A force of 50 N moves an object 30 m in the same direction. How much work is done?, A. 80 J, B. 1,500 J, C. 1,000 J, D. 15,000 J, What does power describe?, A. The total energy stored, B. The distance moved by an object, C. The rate at which work is done or energy is transferred, D. The force acting on an object.

Gr.7-Physics

さんの投稿です
印刷
埋め込み

リーダーボード

表示スタイル

オプション

テンプレートを切り替える

)
自動保存: を復元しますか?