FORCES & MAGNETS Pacer test review

Front

What is friction?

Back

Friction is the force that opposes the motion of an object when two surfaces come in contact.

Front

What are non-contact forces?

Back

Non-contact forces are forces that act on an object without physical contact, such as gravity and magnetism.

Front

What does it mean for forces to be balanced?

Back

Forces are balanced when they are equal in size and opposite in direction, resulting in no change in motion.

Front

What type of friction do skateboard wheels experience?

Back

Skateboard wheels experience rolling friction, which occurs when an object rolls over a surface.

Front

What is net force?

Back

Net force is the overall force acting on an object, calculated by combining all individual forces acting on it.

Front

What is gravity?

Back

Gravity is a non-contact force that pulls objects toward each other, such as the attraction between the Earth and an object.

Front

What is kinetic friction?

Back

Kinetic friction is the force that opposes the motion of two surfaces sliding past each other.

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from starting to move.

Front

What is rolling friction?

Back

Rolling friction is the force that opposes the motion of a rolling object, such as a wheel or ball.

Front

What is the difference between contact and non-contact forces?

Back

Contact forces require physical contact between objects, while non-contact forces act at a distance without contact.