Conceptual Physics midterm review 2024

Front

What is a vector?

Back

A quantity that has both magnitude and direction.

Front

What is a scalar?

Back

A quantity that only has magnitude.

Front

What does Newton's 1st Law state?

Back

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

Front

What does Newton's 2nd Law state?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What does Newton's 3rd Law state?

Back

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

Front

What is acceleration?

Back

The rate of change of velocity of an object.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that refers to the speed of an object in a specific direction.

Front

What is gravitational force?

Back

The attractive force between two masses.

Front

What is the formula for calculating gravitational force?

Back

F = G * (m1 * m2) / r^2, where G is the gravitational constant.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion.