Unit 8 - Forces Test Review - Types of Forces and Newton's 3rd

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that cause an object to accelerate or change its motion. They are not equal in size and opposite in direction.

Front

What is friction?

Back

Friction is a contact force that resists the sliding motion of two surfaces that are touching.

Front

What happens when like poles of magnets are brought together?

Back

Like poles of magnets repel each other.

Front

What are balanced forces?

Back

Balanced forces are forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What is an applied force?

Back

An applied force is a force exerted by a person or object onto another object.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is tension?

Back

Tension is a pulling force transmitted through a string, rope, or cable when it is pulled tight by forces acting from opposite ends.

Front

What is magnetism?

Back

Magnetism is a force that can attract or repel certain materials, typically metals, and is produced by the motion of electric charges.

Front

What is the normal force?

Back

The normal force is the support force exerted upon an object that is in contact with another stable object, acting perpendicular to the surface.

Front

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

Back

Contact forces require physical contact between objects (e.g., friction, tension), while non-contact forces act at a distance (e.g., gravity, magnetism).