I know that if you push and pull with the same force then the forces are balanced.

I know what happens when one force is bigger.

I know what happens if you have more force.

I know that the size of an arrow represents the size of a force.

I know that gravitational force is a pull.

I can give examples of streamlined objects.

I can describe what friction is and does.

I know how friction makes things harder to move.

I know that air resistance causes friction.

I know that force is measured in Newtons.

I can describe the forces on a stationary object.

I can relate loudness and pitch to vibration, using the words amplitude and frequency.

I know the range of human hearing.

I know that sound travels at different speeds in different materials.

I can explain how the ear works and why loud sounds damage our hearing.

Level 7

I can relate the direction and size of forces to acceleration.

I can apply the speed formula to new situations and use different units.