Forces and Motion

What is the force that opposes the motion of an object?

• friction

• gravity

• momentum

• inertia

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

• centrifugal force

• friction

• magnetism

• gravity

What is the change in an object's direction and/or speed called?

• distance

• time

• speed

• acceleration

Give an example of a contact force.

• Electricity

• Magnetism

• Friction

• Gravity

Give an example of a non-contact force.

• Friction force

• Gravity force

• Tension force

• Magnetic force

Is pushing an example of a push or a pull force?

• Twist

• Push

• Pull

• Float

Is lifting an example of a push or a pull force?

• pull

• bend

• twist

• push

What force causes a ball to stop rolling on the ground?

• Friction

• Magnetism

• Gravity

• Inertia

What force causes a book to fall to the ground when dropped?

• Gravity

• Wind

• Magnetism

• Friction

What is an example of a contact force?

• Kicking a ball

• A pen falling off a desk

• Magnets repelling

• Like charges (negative & a negative)