Science Y9 T1

Question 1

Charged Particle

Answer 1

A particle with an electric charge (ion, electron, proton

Question 2

Ion

Answer 2

A atom and molecule with a net electric charge

Question 3

Anion

Answer 3

An ion with a negative charge

Question 4

Cation

Answer 4

An ion with a positive charge

Question 5

Electricity

Answer 5

The flow of electrons

Question 6

Conductor

Answer 6

A material that electricity can easily go through

Question 7

Insulator

Answer 7

A material that electricity cannot easily go through

Question 8

Coulomb

Answer 8

A unit of electrical charge

Question 9

Current

Answer 9

The rate of coulombs flowing in the circuit

Question 10

Ampere

Answer 10

1 coulomb per second

Question 11

DC

Answer 11

A type of current where electrons flow in the same direction in a wire

Question 12

AC

Answer 12

A type of current where electrons flow in multiple directions in a wire

Question 13

Circuit

Answer 13

A loop of wire which connects an energy source to an energy user

Question 14

Resistance

Answer 14

The opposition of the flow of current

Question 15

Ohm, Ω

Answer 15

A way to measure resistance

Question 16

Voltage

Answer 16

The difference in potential energy across an energy source or circuit component/The force that pushes the electrons

Question 17

Series Circuit

Answer 17

A circuit in a loop

Question 18

Parallel Circuit

Answer 18

A circuit with loops being connected up

Question 19

Ohm’s Law

Answer 19

Volts (Voltage) = Amps (Current) * Ohms (Resistance)

Question 20

Convection

Answer 20

The transfer of heat through a fluid/gas by molecular movement

Question 21

Conduction

Answer 21

The transfer of heat by direct contact

Question 22

Radiation

Answer 22

Energy that is radiated or transmitted in the form of rays or waves or particles

Question 23

Wave motion

Answer 23

Activity that carries energy from one place to another through a medium without moving any matter

Question 24

Reflection

Answer 24

When light bounces off an object

Question 25

Specular Reflection

Answer 25

A type of reflection where light reflects off a smooth and shiny surface and the light reflects at the same angle as it hit the surface

Question 26

Angle of Incidence

Answer 26

The angle light hits a reflecting surface

Question 27

Angle of Reflection

Answer 27

The angle at which light bounces off a reflective surface

Question 28

Diffuse Reflection

Answer 28

A type of reflection where light reflects off a rough surface in many reflections

Question 29

Absorption

Answer 29

The transfer of light energy into an object

Question 30

Transmission

Answer 30

When a light ray may pass through an object without being absorbed

Question 31

Refraction

Answer 31

The bending of light as it passes from one material to another

Question 32

Series circuit total resistance

Answer 32

R1+R2+R3

Question 33

1/Parallel circuit total resistance

Answer 33

(1/R1)+(1/R2)+(1/R3)

Question 34

Wavelength

Answer 34

The distance between the crests of a wave

Question 35

Amplitude

Answer 35

The maximum extent of a vibration or oscillation

Question 36

Transitive Wave

Answer 36

A wave where the vibration takes place to a right angle to the source

Question 37

Longitudinal Wave

Answer 37

A wave where the vibration takes place perpendicular to the source

Question 38

Frequency (Hz)

Answer 38

Number of waves passing each second

Question 39

Wave speed (v)

Answer 39

The rate at which a wave covers distance

Question 40

Calculation for waves (? = ?*?)

Answer 40

𝑉 (𝑚 𝑝𝑒𝑟 𝑠)=𝑓 (𝐻𝑧)⋅𝜆 (𝑚)

V=f*𝜆

Question 41

Distance = ?*?

Answer 41

Distance = Speed * Time

Question 42

Speed of Light (?*10^?)

Answer 42

3.0 * 10^8 meters per second