Physical Science Course Review

Front

What is a balance used to measure?

Back

Mass.

Front

What does an object's speed measure?

Back

How fast the object is moving.

Front

What describes a book sitting on a desk?

Back

There are balanced forces acting on the book.

Front

What is a pattern of stars seen from Earth called?

Back

Constellation.

Front

Which of the following is NOT accelerating?

Back

A braking cyclist.

Front

What is the definition of mass?

Back

The amount of matter in an object.

Front

What is the formula for speed?

Back

Speed = Distance / Time.

Front

What is the difference between speed and velocity?

Back

Speed is scalar (magnitude only), while velocity is vector (magnitude and direction).

Front

What are balanced forces?

Back

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

Front

What is acceleration?

Back

The rate of change of velocity of an object.