Physical Science Exam Review

Front

What are acids?

Back

Corrosive substances characterized as having a strong smell and a sour taste.

Front

What does the law of conservation of energy state?

Back

When one form of energy is converted into another, no energy is destroyed in the process.

Front

What determines the acceleration of an object when struck with the same force?

Back

The mass of the object; the lighter the object, the greater the acceleration.

Front

What is Newton's 1st law of motion?

Back

An object at rest stays at rest unless acted on by an unbalanced force (inertia).

Front

How do you calculate kinetic energy (KE)?

Back

KE = 0.5 * mass * velocity^2.

Front

What is the formula for calculating kinetic energy of a runner with mass 80 kg running at 8 m/s?

Back

KE = 0.5 * 80 kg * (8 m/s)^2 = 2560 J.

Front

What are bases?

Back

Substances that can accept hydrogen ions (protons) or donate electron pairs.

Front

What is the relationship between force, mass, and acceleration?

Back

Force = Mass * Acceleration (F = ma).

Front

What is inertia?

Back

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

Front

What is the significance of the equal and opposite reaction in Newton's 3rd law?

Back

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