P5 FORCE

Frictional force acts in the .................. direction of motion

• same

• upward

• opposite

• downward

The rougher the surface, the greater the frictional force of the object.

• True

• False

a force is a . . . . or a . . . .

• push, pull
• pull, jump

• push or kick

• flower or bee

• push, sleep

The book will move further along a smooth surface than a rough surface.

• true

• false

if there were no frictional force, the moving coin would come to a stop on the table.

• true

• false

when we push or pull an object, we are applying a . . . . to it.

What is the problem of frictional force between the boat and the water?

• it speeds up the boat

• it slows down the boat

• It overheats the boat

• the boat will wear out

Is this a balanced or unbalance force?

• Balanced
• Unbalanced
• Neither one
• Both

Which direction will the object move?

• Up
• Down
• Right
• Left

Is this a balanced or unbalanced force?

• Balanced
• Unbalanced
• Neither
• Both