Characteristics of Energy
Which of the following statements about energy are correct? Select all that apply.
A. Energy can be created or destroyed
B. Energy is the ability to do work.
C. Energy is a material substance.
D. Energy can change from one form to another.
E. An object can only have one form of energy at a time.

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .

In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents

The ability to make things happen is also called a. heat b. force c. matter d. energy