Physical Science - Fall 2024 Final Exam

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

How is gravitational potential energy defined?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, typically calculated as PE = mgh (mass x gravity x height).

Front

What does a speed vs. time graph represent?

Back

A speed vs. time graph shows how the speed of an object changes over time, where the slope represents acceleration.

Front

What is scientific notation?

Back

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form, typically in the format a x 10^n.

Front

What are the three main subatomic particles?

Back

The three main subatomic particles are protons (positive charge), neutrons (no charge), and electrons (negative charge).

Front

What does it mean if an object has negative acceleration?

Back

Negative acceleration means that the object is slowing down or decelerating.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic energy (KE) is calculated using the formula KE = 1/2 mv^2, where m is mass and v is velocity.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

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 includes both speed and direction.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force in SI is the Newton (N).