Science

Question 1

Difference between parallel circuit and series circuit

Answer 1

A series circuit only has 1 path to flow while a parallel circuit has more than one path to flow

Question 2

Difference between endothermic and exothermic

Answer 2

Exothermic releases heat causing the temperature of the surroundings to rise while the endothermic process absorbs heat and cools the surroundings

Question 3

Energy

Answer 3

Energy is the ability to cause change- it can change the temperature, shape, speed, or direction of an object

Question 4

Ohm’s law

Answer 4

Voltage= current x resistance

Question 5

Joule

Answer 5

measure of the capacity to work/generate heat

Question 6

Parallel circuit

Answer 6

A parallel circuit is a circuit that has more than one path for the electric current to follow

Question 7

Voltage

Answer 7

The pressure that pushes electricity

Question 8

Electrodes

Answer 8

an electrical conductor that carries electric current to the nonmetallic circuit parts of a circuit

Question 9

Series Circuit

Answer 9

A series circuit has only one path for the electric current to follow

Question 10

Energy Transformation

Answer 10

The process of changing energy from one form to another

Question 11

Electricity

Answer 11

The form of energy resulting from the existence of charged current - rate of flow of negative charges in an electric current

Question 12

Transformers

Answer 12

A device that transfers some electric energy from one circuit to another

Question 13

Alternating Current

Answer 13

an electric current that reverses its direction many times a second at regular intervals

Question 14

Semiconductors

Answer 14

It conducts sometimes not others

Question 15

Resistance

Answer 15

The measure of how difficult it is for electrons to flow through a material

Question 16

Catalyst

Answer 16

A substance that changes the rate of chemical reaction

Question 17

Kinetic Energy

Answer 17

Kinetic Energy is energy from objects in motion and depends on the masses and speed of an object. The higher the speed and or mass the more kinetic energy.

Question 18

Electric Current

Answer 18

The flow of electricity in an electronic circuit, and to the amount of electricity flowing through a circuit

Question 19

Ions

Answer 19

An atom or molecule with a net electrical charge

Question 20

Direct Current

Answer 20

The electric current that flows consistently in one direction

Question 21

Current

Answer 21

The rate at which electrons flow past a point in a complete electrical circuit

Question 22

Battery

Answer 22

An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices

Question 23

Law of Conservation of Energy

Answer 23

energy can neither be created nor be destroyed

Question 24

Potential energy

Answer 24

the stored energy in an object due to its position, properties, and forces acting on it

Question 25

Conductors

Answer 25

Allow electrons to move through them more easily, the best conductors are metals such as copper, silver and iron

Question 26

Watts

Answer 26

Unit of power measuring electric flow

Question 27

Circuit

Answer 27

A circuit is a closed path through which an electric current can flow

Question 28

Insulators

Answer 28

A material in which electrons cannot move easily from place to place

Question 29

Power

Answer 29

The rate at which energy is transferred by a circuit