grade 6 , con 5 , lesson 5

When an object stops on the top of a ramp, it stores..........energy.

• kinetic

• light

• potential

• sound

When a car goes down on a ramp, its .........energy changes to ...........energy.

• kinetic - potential

• potential - kinetic

• sound - potential

• light - potential

Due to the friction between a moving object and a flat road, the.......energy of the moving object changes into ........energy.

• kinetic - thermal

• thermal - kinetic

• potential - thermal

• kinetic - potential

Due to the friction force between a moving object and a flat road, the speed of a moving object..........

• decreases then increases.

• not be affected.

• decreases.

• increases

If there are a small car and a truck moving down on the same ramp,...........

• the car moves faster than the truck.

• the car and the truck move with the same speed.

• the truck moves slower than the car.

• the truck moves faster than the car.

If the mass of an object moves down on a ramp............. , its speed..................

• decreases - increases.

• increases - decreases.

• increases - increases.

• does not change - decreases.

When a marble goes down on a ramp, its stored potential energy.............

• increases.

• doesn't change.

• changes into kinetic energy.

• changes into light energy.

Energy can be stored in the form of kinetic energy inside an object

• true

• false

Friction increases the speed of moving objects

• true

• false

A moving car has potential energy while stopping your car has kinetic energy

• true

• false