Form 3 Science Chapter 7

Energy cannot be

• created

• played

• talked

• changed

Energy can only ( ) its form.

• create

• destroy

• change

• grab

When gravitational potential energy maximum, kinetic energy

• maximum

• minimum

• zero

• no change

When kinetic energy maximum, gravitational potential energy

• maximum

• minimum

• zero

• no change

Gravitational potential energy increases, kinetic energy

• increases

• decreases

• no change

• zero

When elastic potential energy maximum, kinetic energy

• maximum

• minimum

• zero

• no change

When kinetic energy maximum, elastic potential energy

• maximum

• minimum

• zero

• no change

When elastic potential energy increases, kinetic energy

• increases

• decreases

• zero

• no change

Formula of gravitational potential energy

• $\frac{1}{2}Fx$

• mgh

• $\frac{1}{2}mv^2$

• $\frac{1}{2}F$

Formula of kinetic energy

• mgh

• $\frac{1}{2}Fx$

• $\frac{1}{2}mv^2$

• $\frac{1}{2}F$