Physical Science Final Exam Review

Front

How many neutrons does carbon-14 have?

Back

Carbon-14 has 8 neutrons.

Front

What is the formula to calculate acceleration?

Back

Acceleration (a) = (Final Velocity (v_f) - Initial Velocity (v_i)) / Time (t).

Front

A roller coaster accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What is the acceleration?

Back

The acceleration is 16 m/s².

Front

What element behaves MOST like potassium (K)?

Back

Lithium (Li) behaves most like potassium.

Front

What is a generator used for?

Back

A generator converts mechanical energy into electrical energy.

Front

What is the load of the cotton bale in the pulley system?

Back

The load of the cotton bale is 200 N.

Front

How much effort is required to lift a 200 N load using a pulley system that provides a mechanical advantage of 2?

Back

The effort required is 100 N.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

Define kinetic energy.

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv².

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state, calculated as PE = mgh.