District 6th gr. Science Semester Review

Front

Which two states of matter DO NOT have a definite shape?

Back

Liquids and Gases

Front

What type of mixture is soil?

Back

Heterogeneous

Front

What is the net force when forces are acting in the same direction?

Back

The sum of the forces acting in that direction.

Front

What is the net force when forces are acting in opposite directions?

Back

The difference between the forces acting in opposite directions.

Front

What is an unbalanced force?

Back

A force that causes an object to accelerate or change its motion.

Front

What is a balanced force?

Back

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

Front

What is the formula for calculating net force?

Back

Net Force = Total Forces in One Direction - Total Forces in the Opposite Direction.

Front

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

Back

It remains at rest.

Front

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

Back

It continues to move at a constant speed in a straight line.

Front

What is the unit of force?

Back

Newton (N)