Energy

Question 1

Energy is measured in..

Answer 1

Joules ( J )

Question 2

Energy cannot be ….1…. Or …2… ,only …….3……. From one form to another .

Answer 2

Created or destroyed .
Only transferred.

Question 3

Example 3
A bow being released to fire an arrow uses the energy stored in the bent bow and stretched string to make the arrow move. we can write the energy transfer that takes place as:

Answer 3

elastic potential —> kinetic

Question 4

Explanation for the 3rd example ,
Because the string is being stretched that is elastic potential (Which means something being stretched)Then since the string is moving it is kinetic energy.

Answer 4

Elastic potential —> kinetic