Forces & Newton's Laws 2020

What is a push or pull on an object?

• acceleration

• force

• mass

• velocity

Force can cause ______________________ (choose all appropriate answers).

• lights to turn on

• a moving object to accelerate

• a resting object to move

• a moving object to decelerate

Which of the following is a unit for force?

• grams

• joules

• newtons

• celsius

Choose examples of balanced forces (choose all that apply).

• A bolder sitting on a hill

• A man standing on the floor

• A student pushing against a locked door

• A car driving 4 m/s/s north on a asphalt road

• A bolder rolling down a hill

Choose examples of unbalanced forces (choose all that apply).

• A bolder sitting on a hill

• A man standing on the floor

• A student pushing against a locked door

• A car driving 4 m/s/s north on a asphalt road

• A bolder rolling down a hill

Which of the following are types of friction? (choose all that apply)

• fluid

• static

• rolling

• sliding

This can be used to reduce friction.

• force

• mass

• lubricant

• velocity

This form of friction acts of wheels or other rolling objects.

• static

• sliding

• rolling

• fluid

The form of friction that liquids or gases cause on movement.

• static

• sliding

• rolling

• fluid

The form of friction that acts on nonmoving objects

• static

• sliding

• rolling

• fluid