Gravity, Waves and Energy

Gravity

100

This physicist proposed the theory of general relativity, which describes gravity as the curvature of spacetime.

Albert Einstein

200

What is the unit of measurement for gravitational force?

Newton (unit)

300

What is the name of the force that pulls objects toward the center of the Earth?

gravity

400

The force of gravity between two objects depends on these two factors.

mass and distance

500

This type of wave is characterized by compressions and rarefactions and requires a medium for propagation.

a sound wave

Waves

100

This type of wave does not require a medium to propagate and can travel through a vacuum.

electromagnetic wave

200

What is the name of the phenomenon where an object's frequency appears to change due to motion relative to an observer?

Doppler effect

300

These waves are produced by the acceleration of charged particles and can travel through space.

electromagnetic waves

400

What type of wave consists of oscillations perpendicular to the direction of propagation?

transverse wave

500

What is the term for the bending of waves around obstacles or through openings?

diffraction

Energy Basics

100

The energy of motion is known as this.

kinetic energy

200

What term describes the smallest possible quantity of energy that can be emitted or absorbed in the form of electromagnetic radiation?

quantum

300

This law of physics states that energy cannot be created or destroyed, only transformed from one form to another.

 the law of conservation of energy

400

This type of energy is stored in an object due to its position or configuration.

potential energy

500

The study of the behavior of waves is known as this branch of physics.

wave mechanics

Famous Scientists and Experiments

100

This famous experiment conducted in 1919 provided evidence supporting Einstein's theory of general relativity.

Eddington Eclipse Experiment

200

What is the name of the theoretical particles associated with the transmission of gravitational force?

gravitons

300

The speed of light is a fundamental constant denoted by this letter.

"c" (speed of light)

400

This famous equation, E=mc^2, relates energy and mass.

 mass-energy equivalence equation

500

What is the name of the process where light is absorbed by atoms and then re-emitted in all directions?

absorption and emission

Vocab

100

1. This term describes the distance between successive peaks (or troughs) of a wave.

wavelength

200

1. What is the name for the energy associated with the motion of particles within a substance?

thermal energy

300

1. This principle states that waves will spread out and bend around obstacles they encounter.

principle of diffraction

400

1. What term describes the total energy of an object, combining its kinetic and potential energy?

mechanical energy

500

1. This type of wave occurs when particles of the medium vibrate parallel to the direction of wave motion.

longitudinal wave