2024_25 TEST 3_2 Final

Front

What is a force that acts at a distance?

Back

A force that can affect an object without direct contact, such as magnetic or gravitational forces.

Front

What is a noncontact force?

Back

A force that does not require objects to be in physical contact to exert an influence, like magnetic and electric forces.

Front

How does the strength of a magnetic force change with distance?

Back

The strength of a magnetic force decreases as the distance between the magnet and the object increases.

Front

What happens when you increase the number of coils in an electromagnet?

Back

Increasing the number of coils increases the strength of the magnetic field produced by the electromagnet.

Front

What is the relationship between electric charges and electric forces?

Back

Like charges repel each other, while opposite charges attract each other, creating electric forces.

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What is the significance of mass in a collision?

Back

Mass affects the speed and direction of objects after a collision; heavier objects tend to move slower than lighter ones if the same force is applied.

Front

What is an example of a magnetic force?

Back

A magnet attracting or repelling another magnet without touching it.

Front

What is the difference between contact and noncontact forces?

Back

Contact forces require physical touch (like friction), while noncontact forces act over a distance (like magnetic forces).

Front

What is the role of distance in magnetic interactions?

Back

The force of magnetism weakens as the distance between magnets increases.