Physical Science Final Exam

Front

What is power in physics?

Back

Power is the rate at which work is done or energy is transferred, measured in watts (W).

Front

How do you calculate power?

Back

Power (P) = Work (W) / Time (t).

Front

What is the formula for calculating work?

Back

Work (W) = Force (F) x Distance (d) x cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that is consumed during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A product is a substance that is produced as a result of a chemical reaction.

Front

What does it mean to balance a chemical equation?

Back

Balancing a chemical equation means ensuring that the number of atoms for each element is the same on both sides of the equation.

Front

What is the net force?

Back

The net force is the total force acting on an object, taking into account both magnitude and direction.

Front

What is the unit of force?

Back

The unit of force is the Newton (N).

Front

What is the difference between a solvent and a solute?

Back

A solvent is a substance that dissolves a solute, resulting in a solution. The solute is the substance that is dissolved.

Front

What is the significance of the angle in the work formula?

Back

The angle (θ) in the work formula determines how much of the force contributes to the work done in the direction of motion.