Forces and Laws of Motion Practice Set

What is a force?

• A type of energy
• A push or pull on an object
• The speed of an object
• The mass of an object

Which of the following is an example of balanced forces?

• Pushing a box across the floor
• A car accelerating on a highway
• A book resting on a table
• A person jumping off a diving board

What are unbalanced forces?

• Forces that are always equal
• Forces that only act on stationary objects
• Forces that cause a change in an object's motion
• Forces that only exist in space

How do you determine the net force acting on an object?

• Multiply all forces together
• Divide the largest force by the smallest force
• Add forces in the same direction and subtract opposing forces
• Always add all forces regardless of direction

Which force pulls all objects with mass toward one another?

• Friction
• Air resistance
• Inertia
• Gravity

What force acts in the opposite direction to an object moving through the air?

• Gravity
• Friction
• Air resistance
• Magnetic force

In a tug-of-war game where neither team is winning, what type of forces are present?

• Unbalanced forces
• Gravitational forces only
• Balanced forces
• Frictional forces only

Which of the following would reduce the amount of friction on a surface?

• Sandpaper
• Rubber
• Oil
• Concrete

What can unbalanced forces cause an object to do?

• Only start moving
• Only stop moving
• Only change directions
• Start moving, stop moving, or change directions

Which of the following is an example of friction being beneficial?

• Ice forming on a car windshield
• A ball rolling down a hill
• Tires gripping the road while driving
• A spacecraft floating in space