Physics Midterm Review

Front

What is the amount of matter in an object?

Back

Mass

Front

What happens to the velocity of a ball as it is dropped off a cliff?

Back

It increases at a uniform rate.

Front

How do you find the resultant of two perpendicular vectors?

Back

Use the Pythagorean Theorem and Inverse Tangent.

Front

What describes the change in an object's velocity?

Back

Acceleration

Front

What does the graph of position vs. time look like for an object moving with a constant, positive velocity?

Back

A straight line with a positive slope.

Front

Define pressure in a physical context.

Back

Pressure is the force applied per unit area.

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = ma).

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed.

Front

What is the difference between speed and velocity?

Back

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

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.