Practice SGO 2425

Front

What is a contact force?

Back

A contact force is a force that requires physical contact between two objects to occur.

Front

What is a noncontact force?

Back

A noncontact force is a force that acts at a distance without physical contact, such as gravity or magnetism.

Front

What is gravity?

Back

Gravity is a noncontact force that pulls objects toward each other, such as the force that pulls objects toward the Earth.

Front

What is friction?

Back

Friction is a contact force that opposes the motion of an object when it is in contact with another surface.

Front

What is tension?

Back

Tension is a contact force that is transmitted through a string, rope, or cable when it is pulled tight.

Front

What is the formula for calculating the volume of a rectangular box?

Back

Length × Width × Height.

Front

What is the role of gravity in everyday life?

Back

Gravity keeps us grounded on Earth, causes objects to fall, and affects the motion of planets.

Front

What happens to a soccer ball when it rolls on grass?

Back

The ball eventually stops due to the contact force of friction acting against its motion.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces cause an object to accelerate.

Front

What is an example of a noncontact force?

Back

An example of a noncontact force is magnetism, which can attract or repel objects without touching them.