Science Q2

Front 1

Wave

Back 1

It is a disturbance in space.

Front 2

Crest

Back 2

It is the highest point in a wave.

Front 3

Trough

Back 3

It is the lowest point in a wave.

Front 4

Amplitude

Back 4

It is the distance from the midpoint to the highest (or lowest) point of a wave.

Front 5

Wavelength

Back 5

It is the distance between two successive identical parts of a wave.

Front 6

Frequency

Back 6

It refers to the number of waves produced in one second.

Front 7

Energy

Back 7

It is the ability to do work.

Front 8

2 types of wave

Back 8

• Transverse Wave• Longitudinal Wave

Front 9

What ate longitudinal waves

Back 9

Longitudinal waves are waves that have the same direction of vibration as their direction of travel, which means that the movement of the medium is in the same direction as or the opposite direction to the motion of the wave.

Front 10

Parts of longitudinal wave

Back 10

Compression - particles in the wave are closest togetherRarefaction - particles in the wave are farthest apart

Front 11

Production of Electromagnetic waves

Back 11

Produced by disturbance caused by a vibrating charge

Front 12

How are electromagnetic waves formed?

Back 12

Electromagnetic waves are formed when an electric field (shown as blue arrows) couples with a magnetic field (shown as domowe).

Front 13

Who is James Clerk Maxwell?

Back 13

He theorized that this mutual generation and propagation of electric field and magnetic field can be conceived as a form of moving energy carried by what he called as electromagnetic wave.

Front 14

He theorized that this mutual generation and propagation of electric field and magnetic field can be conceived as a form of moving energy carried by what he called as electromagnetic wave.

Back 14

James Clerk Maxwell

Front 15

What is the speed of Electromagnetic waves?

Back 15

He calculated the speed of the wave, the same as the speed of light which is = 3 x 10^8 m/s.He therefore proposed that light is a form of electromagnetic wave.

Front 16

Who is Heinrich Hertz?

Back 16

He designed an experimental set-up that enabled him to generate and detect electromagnetic waves

Front 17

Who is Heinrich Hertz?

Back 17

He designed an experimental set-up that enabled him to generate and detect electromagnetic waves

Front 18

3 properties of wave

Back 18

Amplitude-The height of the wave from the black lineWavelength-The distance between two Identical points on the curveFrequency-The number of waves travelling past a point

Front 19

3 properties of wave

Back 19

Amplitude-The height of the wave from the black lineWavelength-The distance between two Identical points on the curveFrequency-The number of waves travelling past a point

Front 20

What is a magnet?

Back 20

• Any material that attracts iron is a magnet.• Most magnets contain iron, nickel, and cobalt.

Front 21

What are magnetic domains?

Back 21

Domains are groups or tiny areas of atoms which are aligned with one another and they point in the same direction.• If they line up, magnetic.• If they are scattered, not magnetic.

Front 22

What happends when the poles of the magnet interact with each other

Back 22

When magnets are placed near each other, it behaves in such a way that: unlike poles attract, like poles repel. Magnets will always have a north pole and a south pole.

Front 23

4 properties of magnetic field lines in a bar magnet

Back 23

1. Flow from north to south pole outside the magnet and south to north pole inside the magnet.2. Parallel and uniform inside the magnet and diverges and non-uniform outside.3. Closer together at the poles.4. Increases the magnetic field strength at the pole.

Front 24

What is a magnetic field?

Back 24

- is the region where a force is felt

- magnetized region of space

Front 25

What is magnetism?

Back 25

refers to the properties and interactions of magnets

Front 26

What are the causes of magnetism?

Back 26

• Depends on elements (Iron, Nickel, Cobalt)• Domains - alignment of atoms• Movement of chargesWhen charged particles, such as electrons, move through a conductor, they create a magnetic field perpendicular to their direction of movement (electromagnetism).

Front 27

What is electricity?

Back 27

is the flow of electric charge, typically carried by electrons, through a conductor such as a wire.

Front 28

What it electromagnetism

Back 28

• Electromagnetism involves the interaction between electric currents and magnetic fields.• It shows how electricity can create a magnetism or how magnetism can create electricity.

Front 29

What is a medium?

Back 29

• A medium is a material through which waves can travel.• It can be a solid, liquid, or gas.

Front 30

How do you differentiate wave pulse from wave trains?

Back 30

A wave pulse is a single disturbance that travels through a medium, whereas a wave train consists of a continuous series of repeating pulses.

Front 31

What are transverse waves?

Back 31

This type of wave makes particles of the medium vibrate in a direction perpendicular to the direction of wave propagation