Physics P1

Question 1

What are oscillations?

Answer 1

A regularly repeating motion about a central value

Question 2

What is a period?

Answer 2

The time taken for one whole cycle of an oscillation before the motion start to repeat itself

Question 3

What is displacement?

Answer 3

How far oscillation have moved from its mean value at any given time

Question 4

What is amplitude?

Answer 4

A measure of its change in a single period

Question 5

What are wavelengths?

Answer 5

The distance along the wave in its direction of travel between consecutive points where the oscillations are in phase

Question 6

What is wave motion?

Answer 6

Waves transfer energy from one place to another, without causing any net movement of materials

Question 7

What is wave speed?

Answer 7

The speed at which a wave travels
v=f⅄
speed = wavelength / time

Question 8

What is phase difference?

Answer 8

Difference between two waves at the same point

Question 9

What are the types of waves motion?

Answer 9

Transverse and longitudinal

Question 10

What is a transverse wave?

Answer 10

A transverse wave is a wave whose oscillations are perpendicular to the direction of the wave’s advance

Question 11

What is a longitudinal wave?

Answer 11

A longitudinal wave is a wave whose oscillations are parallel to the direction of the wave’s advance

Question 12

Types of transverse waves

Answer 12

• Water Wave
• EM wave

Question 13

Types of longitudinal waves

Answer 13

• Sound Wave
• Ultrasound wave

Question 14

What is rarefaction?

Answer 14

Rarefactions are regions of low pressure due to particles being far together

Question 15

What is compression?

Answer 15

Compressions are regions of high pressure due to particles being close together

Question 16

What is diffraction?

Answer 16

Which a beam of light is spread out as a result of passing through a narrow aperture

Question 17

What is a diffraction grating?

Answer 17

A flat plane object

Question 18

What is transmission?

Answer 18

Wave energy passing though an object and diffraction happens

Question 19

What is reflection?

Answer 19

Wave energy bouncing of a surface and its direction travel has been altered more than 180 degrees

Question 20

What is a interference pattern?

Answer 20

A stationary pattern that can result from a super position of waves traveling, providing they are coherent

Question 21

What is coherent?

Answer 21

Sticking together

Question 22

What is superposition?

Answer 22

The adding of together of wave displacements that occurs when waves from multiple sources overlap

Question 23

What is a path difference?

Answer 23

The difference in length between two rays

Question 24

What is a quantum?

Answer 24

The smallest unit that can exist independently

Question 25

What is a photon?

Answer 25

A quantum of electromagnetic radiation

Question 26

What is a quantum?

Answer 26

The smallest unit that can exist independently

Question 27

What is the emission spectra?

Answer 27

The spectrum of frequencies of electromagnetic radiation

Question 28

What is the emission spectra?

Answer 28

The spectrum of frequencies of electromagnetic radiation

Question 29

What is quantum theory?

Answer 29

The nature and behavior of sub-atomic particles on the atomic level

Question 30

What is an energy level?

Answer 30

Values that an electron in an atom can have or occupy

Question 31

What is the ground state?

Answer 31

The lowest possible energy state possible for a bound particle

Question 32

What is a stationary wave?

Answer 32

A wave that is in phase, having the same amplitude and frequency

Question 33

What is a node?

Answer 33

A point where the amplitude is at a minimum

Question 34

What is a antinode?