FEM SG 23- 31

Question 1

If you balance a book on your head, you are not doing work because?

Answer 1

The book is not moving.

Question 2

Energy that an object has because of it’s position is…

Answer 2

Potential Energy

Question 3

A falling ball with a potential energy of 15 J and a kinetic energy of 15 J, what is it’s mechanical energy?

Answer 3

30 J

Question 4

The unit for work is what?

Answer 4

Joule

Question 5

By increasing speed you increase your…

Answer 5

power

Question 6

A ball kicked into the air has the most GPE at its…

Answer 6

Highest point

Question 7

Difference between KE and PE, and how the energy can change forms.

Answer 7

KE - Energy of movement
PE - Energy due to an objects position
Convection, Conduction, Radiation

Question 8

When you push a child on a swing, when are you doing work?

Answer 8

When you are making contact with the child

Question 9

Three ways energy can be transferred?

Answer 9

Conduction - Direct contact
Convection - Movement of fluids
Radiation - Movement of waves