Science Assessment November 21

Question 1

Energy

Answer 1

The ability to do work

Question 2

Energy Transformation

Answer 2

The change of energy from one form to another

Question 3

Kinetic Energy

Answer 3

Energy from objects in motion

Question 4

Potential Energy

Answer 4

The energy that comes from position or condition

Question 5

Ohm’s Law

Answer 5

Voltage= Current X Resistance

Question 6

Electricity

Answer 6

A form of energy resulting from the existence of charged particles

Question 7

Electric Current

Answer 7

The steady flow of electrons through a conductor. Electric current is measured in units of amps.

Question 8

Conductors

Answer 8

Allow electrons to move through them more easily. The best conductors are metals, copper, silver, and iron.

Question 9

Joule

Answer 9

A measure of the capacity to do work or generate heat

Question 10

Transformers

Answer 10

A device that transfers some electric energy from one alternating current to another

Question 11

Ions

Answer 11

An atom or particle with a net charge

Question 12

Watts

Answer 12

A unit of power measuring the electric flow

Question 13

A Parallel Circuit

Answer 13

A circuit that has more than one path for the electric current to flow

Question 14

Alternating Current

Answer 14

The value of the quantity and direction of the current is not a constant, it changes at a regular interval

Question 15

Direct Current

Answer 15

An electric current that flows consistently in one direction

Question 16

Circuit

Answer 16

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

Question 17

Voltage

Answer 17

It is a measure of the electric potential energy and is measured in units of volts.

Question 18

Semiconductors

Answer 18

It conducts sometimes, not others

Question 19

Current

Answer 19

The rate of flow of negative charges in an electric circuit

Question 20

Insulators

Answer 20

A material in which electrons cannot move easily from place to place is called an insulator. Examples of common materials that are insulators are plastic, wood, glass, and rubber.

Question 21

Electrodes

Answer 21

A good conductor of electricity that usually connects non-metallic parts of a circuit

Question 22

Resistance

Answer 22

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

Question 23

Battery

Answer 23

A measure of the electrical potential energy and is measured in units of volts.

Question 24

Power

Answer 24

The rate at which energy is transferred by an electric circuit

Question 25

Series Circuit

Answer 25

A circuit with only one path for the electrical current to flow

Question 26

Catylyst

Answer 26

A substance that changes the rate of a chemical reaction without any change to its own structure

Question 27

Law of Conservation of Energy

Answer 27

Energy cannot be created nor destroyed, only changed in form

Question 28

Difference between parallel circuit and series circuit (draw as well)

Answer 28

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

Question 29

Difference between endothermic and exothermic

Answer 29

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