Chapter 10 Flashcards Preview

Science Year 9 > Chapter 10 > Flashcards

Flashcards in Chapter 10 Deck (17):
1

Conduction

transfer of heat through collisions between particles

2

Convection

transfer of heat through the flow of particles

3

Radiation

a method of heat transfer that does not require particles to transfer heat from one place to another

4

Kinetic energy

energy due to the motion of an object

5

Insulator

material that does not allow heat to move through it

6

Convection Current

circular movement that occurs when warmer, less dense fluid particles rise and cooler, denser fluid particles sink

7

Electric circuit

: a path for electrons to follow, consisting of a power supply, one or more loads, and conductors joining the power supply and loads

8

Electric charge

physical property of matter that causes it to experience a force when near other electrically charged matter. Electric charge can be positive or negative.

9

Static electricity

: a build-up of charge in one place

10

Power supply

device that can provide an electric current

11

Load

device that uses electrical energy and converts it into other forms of energy

12

Conducting path

connected series of materials along which an electric current can flow

13

Electric current

a measure of the number of electrons flowing through a circuit every second. An increase in current means an increase in the rate of flow of electrons in the circuit.

14

Filament

coil of wire made from a metal that glows brightly when it gets hot. The filaments in light globes heat up when electricity flows through them.

15

Switch

device that opens and closes the conducting path through which a current flows

16

Resistance

measure of the electrical energy required for an electric current to pass through an object. The energy is changed to heat.

17

Series circuit

a circuit with the components joined one after the other in a single continuous loop