CSET Physical Sciences: Physics and Chemistry Flashcards

Which subatomic particles are found in the nucleus of an atom?

Answer: Protons and neutrons

The nucleus contains protons (positively charged) and neutrons (neutral); electrons orbit outside the nucleus.

What is the name of the process by which liquid water changes into water vapor?

Answer: Evaporation

Evaporation is the process by which liquid water at the surface absorbs energy and changes to water vapor.

A 10 kg object is lifted 5 meters. What is its gravitational potential energy? (g = 10 m/s²)

Answer: 500 J

Gravitational PE = mgh = 10 kg × 10 m/s² × 5 m = 500 J.

Which of the following is a chemical change?

Answer: Iron rusting

Iron rusting is a chemical change (oxidation) that produces a new substance, iron oxide, with different properties.

Ohm's Law states that voltage (V) equals:

Answer: Current × Resistance

Ohm's Law: V = IR, where V is voltage, I is current, and R is resistance.

What type of electromagnetic radiation has the shortest wavelength?

Answer: Gamma rays

Gamma rays have the shortest wavelengths (and highest frequencies and energy) in the electromagnetic spectrum.