Types of Forces Practice

What is the force that pulls objects towards the center of the Earth?

• repulsion

• magnetism

• friction

• gravity

Which force opposes the motion of an object when it slides over a surface?

• Gravity

• Magnetism

• Inertia

• Friction

What type of force is responsible for attracting or repelling objects with magnetic properties?

• Frictional force

• Magnetic force

• Gravitational force

• Electric force

If you drop a feather and a rock from the same height, which one will hit the ground first?

• Both the feather and the rock will hit the ground at the same time.

• The rock will hit the ground first.

• The feather will float in the air indefinitely.

• The feather will hit the ground first.

What is the unit of measurement for force?

• Joule (J)

• Kilogram (kg)

• Newton (N)

• Meter (m)

Tags

CCSS.HSN.Q.A.1

When two magnets are brought close together, what happens if they are facing opposite poles?

• They will repel each other.

• They will attract each other.

• They will cancel each other out.

• They will create a magnetic field.

What type of friction occurs when an object moves through a fluid like air or water?

• Static friction

• Fluid friction or drag

• Kinetic friction

• Rolling friction

What is the formula to calculate gravitational force between two objects?

• F = G * (m1 + m2) / r^2

• F = G * (m1 * m2) / r^2

• F = G * (m1 * m2) * r^2

• F = G * (m1 - m2) / r^2

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.SSE.A.1

How can you reduce friction between two surfaces?

• Use lubricants, apply smooth surface finish, or use ball bearings/rollers

• Apply more pressure between the surfaces

• Increase surface roughness

• Use sandpaper on the surfaces

What happens to the force of attraction between two magnets if the distance between them increases?

• Decreases

• Increases

• Stays the same

• Becomes repulsive