Physics 3 Review

Kinematics

100

Change in speed over time.

What is acceleration?

200

Has a value of 9.81 m/s².

What is the gravitational acceleration (g)?

300

When an object's sole source of acceleration is gravity (ignoring air resistance).

What is free-fall?

400

Type of motion where an object near Earth's surface is subject only to gravity, but has initial velocity.

What is projectile motion?

500

Shape of the trajectory described by an object undergoing projectile motion.

What is a parabola?

Mechanics

100

Physicist who formulated the three laws of motion at the basis of classical mechanics. He notably formulated F_net = ma.

Who is Isaac Newton?

200

This is often stated as "every action has an equal and opposite reaction."

What is Newton's Third Law?

300

Type of energy related to an object's motion.

What is Kinetic Energy?

400

This quantity is conserved across all types of collisions in a closed system.

What is momentum?

500

Kinetic energy is conserved in this type of collision.

What are perfectly elastic collisions?

Waves

100

Inverse of the period of a wave.

What is the frequency?

200

Distance over which a wave's pattern repeats itself.

What is wavelength?

300

Only kind of wave that doesn't need a medium to propagate.

What are electromagnetic waves?

400

Type of wave in which displacement is perpendicular to direction of energy transfer.

What are transverse waves?

500

Motion in which the restoring force is directly proportional to the displacement (eg mass on a spring).

What is Simple Harmonic Motion?

Sound

100

Observed change in frequency of a sound wave when the source is moving relative to the observer.

What is the Doppler Effect?

200

Measure of how high or low a sound is perceived to be.

What is pitch?

300

Large vibration obtained when driving frequency of a system is equal to its natural frequency.

What is resonance?

400

On average, highest frequency that can be heard by the human ear.

What is 20 kHZ?

500

Dimensionless unit that describes the ratio between two intensities of sound.

What is the decibel?

Optics

100

Electromagnetic radiation whose wavelength is between 400 and 700 nm.

What is visible light?

200

Has a value of 3.00 X 10⁸ m/s.

What is the speed of light (c)?

300

Occurs when light ways change medium, so that light travels at a different speed.

What is refraction?

400

Ratio of the speed of light vacuum to the speed of light in a medium.

What is the index of refraction?

500

When EM waves align so that the vibration of the electric field in each wave are parallel.

What is linear polarization?