General Science & Ability

A salt and usually water

The use of electric current to drive a non-spontaneous chemical reaction

Total internal reflection

A prism

The apparent change in observed frequency caused by relative motion between a wave source and an observer

A large-amplitude vibration produced when a system is driven near its natural frequency

A reflected sound heard separately from the original sound

Mass measures the amount of matter, while weight is the force of gravity acting on that mass

Gravity

A body suspended from a fixed point so that it can swing back and forth under gravity

Hydrometer

Thermometer