BM 1.3 - Non-contact Forces (Gravity, Electricity & Magnetism)

Front

What are non-contact forces?

Back

Forces that act on an object without physical contact, such as gravity, electricity, and magnetism.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, proportional to their masses and inversely proportional to the square of the distance between them.

Front

What happens to gravitational force when the mass of an object increases?

Back

The gravitational force increases.

Front

What is an electric force?

Back

A force that occurs between charged objects, which can either attract or repel depending on the charges involved.

Front

What is a magnetic force?

Back

A force that acts between magnetic poles, where like poles repel and opposite poles attract.

Front

What is the relationship between electric and magnetic forces?

Back

Electric currents can produce magnetic fields, and changing magnetic fields can induce electric currents.

Front

What is a magnetic field?

Back

A region around a magnet where magnetic forces can be observed, represented by field lines.

Front

What do opposite charges do to each other?

Back

Opposite charges attract each other.

Front

What do like charges do to each other?

Back

Like charges repel each other.

Front

What is the role of fields in non-contact forces?

Back

Fields exist between objects that are not in contact, allowing forces to act at a distance.