CFA Forces review

Front

What are balanced forces?

Back

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

Front

What are unbalanced forces?

Back

Forces that are not equal and opposite, causing an object to accelerate or change its motion.

Front

What happens to an object when balanced forces act on it?

Back

The object stays still or moves at a constant speed and direction.

Front

What is an example of a magnetic force?

Back

The force that causes magnets to attract or repel each other.

Front

What is a gravitational force?

Back

The force that attracts two bodies towards each other, such as the Earth pulling objects towards its center.

Front

What is a chemical change?

Back

Any change that results in the formation of new chemical substances.

Front

What is an example of an unbalanced force?

Back

A marble rolling down a ramp due to gravity.

Front

Why does a book on a table not move?

Back

The forces of the table pushing up and gravity pulling down are balanced.

Front

What is friction?

Back

A force that opposes the motion of an object, caused by the contact between surfaces.

Front

What is the role of gravity in motion?

Back

Gravity pulls objects towards the Earth, affecting their motion.