Study Guide Forces & Newton's Laws of Motion

A push or a pull is a __________________.

• balanced forces

• force

• unbalanced forces

Forces that do not cause a change in the motion of an object are called ___________________________.

• balanced forces

• force

• unbalanced forces

Forces that can cause an object to start, stop, or change direction are called ________________________.

• balanced forces

• force

• unbalanced forces

A book lying on a desk is being pulled down by gravity and is being supported by the desk with an upward force. Since it is not moving, what kind of forces are acting on the book? ______________________________

• balanced forces

• force

• unbalanced forces

Two girls are pulling in opposite directions on a pair of leggings they both want. There will only be movement if one girl pulls with a greater force than the other. If movement does occur, what kind of forces are acting on the leggings? __________________________

• balanced forces

• force

• unbalanced forces

An asteroid is moving through space at a constant speed and has been for 7 days. What type of forces are acting on the asteroid? ____________________________

• balanced forces

• force

• unbalanced forces

What best describes the motion of these object?

• a. balanced forces - no motion

• b. unbalanced forces - motion to the right

• c. unbalanced forces - motion to the left

What is the net force of this object?

• 400N down

• 600N down

• 200N up

• 800N down

Match the types of forces with their description.

The force exerted between two objects with mass is called ___________________________________. It can affect the weight of an object.

• electrical force

• frictional force (friction)

• gravitational force

• magnetic force

Match the types of forces with their description.

The force that opposes motion is called ___________________________.

• electrical force

• frictional force (friction)

• gravitational force

• magnetic force