Phdyics

Question 1

Displacement (d)

Answer 1

How far an object ends up from where it started, and in what direction. A
vector quantity. SI unit: meters (m)

Question 2

Velocity (v)

Answer 2

How fast an object is moving and in what direction. A vector quantity. SI
unit: meters per second (m/s)

Question 2

Distance (d)

Answer 2

The total length an object travels. A scalar quantity. SI unit: meters (m)

Question 2

Acceleration (a)

Answer 2

How quickly an object’s velocity changes. A vector quantity. SI unit:
meters per second squared (m/s2)

Question 3

Average Velocity (V︤)

Answer 3

The total displacement divided by the total time taken. A vector quantity.
SI unit: meters per second (m/s)

Question 4

Force (F)

Answer 4

A push or a pull. A vector quantity. SI unit: newton (N)

Question 5

Inertia

Answer 5

How much an object resists changes in its motion.

Question 6

Net Force (Fnet)

Answer 6

Force (Fnet)
All the forces together on an object. A vector quantity. SI unit: newton (N)

Question 7

Weight (Fg)

Answer 7

The force of gravity pulling on an object to the planet or celestial body it is on. A vector quantity.
SI unit: newton (N)

Question 8

Momentum (p)

Answer 8

How hard it is to stop something moving. A vector quantity. SI unit:
kilogram meters per second (kg·m/s)

Question 9

Work (W)

Answer 9

Using force to move something. The change in energy of an object. A
scalar quantity. SI unit: joule (J)

Question 10

Power (P)

Answer 10

How fast work is done. A scalar quantity

Question 11

Energy

Answer 11

The ability to do work. A scalar quantity. SI unit: joule (J)

Question 12

Momentum Transfer

Answer 12

Moving momentum from one thing to another. A vector quantity. SI unit:
kilogram meters per second (kg·m/s)

Question 13

Momentum Explosion

Answer 13

When things that were together suddenly push apart, keeping total
momentum the same. A vector quantity. SI unit: kilogram meters per
second (kg·m/s)

Question 14

Electric Charge (q)

Answer 14

The stuff that makes things attract or repel electrically. A scalar quantity. SI unit:
coulomb (C)

Question 15

Elementary Charge (e)

Answer 15

The charge of one tiny electron or proton. A scalar quantity. SI unit: elementary
charge (e)

Question 16

Coulomb (C)

Answer 16

The unit of electric charge.

Question 17

Electric Current (I)

Answer 17

The flow of electric charge. A scalar quantity. SI unit: ampere (A)

Question 18

Voltage (Potential Difference) (V)

Answer 18

The “push” that moves electric charge. A scalar quantity. SI unit: volt (V)

Question 19

Resistance (R)

Answer 19

How much something slows down electric current. A scalar quantity. SI unit: ohm
(Ω)

Question 20

Ohm’s Law

Answer 20

Voltage equals current times resistance (V=IR).

Question 21

Conductors

Answer 21

Things that let electric charge flow easily.

Question 22

Insulators

Answer 22

Things that don’t let electric charge flow easily.

Question 23

Electrical Power (P)

Answer 23

How fast electrical energy is used. A scalar quantity. SI unit: watt (W)

Question 24

Electrical Energy/Electrical Work (W)

Answer 24

Energy from moving electric charges. A scalar quantity. SI unit: joule (J)

Question 25

Circuit

Answer 25

A loop for electric current to flow through.

Question 26

Series Circuit

Answer 26

A circuit where things are connected one after another.

Question 27

Parallel Circuit

Answer 27

A circuit where things are connected side by side.

Question 28

Electrical Conduction

Answer 28

Electric charge moving through touching things.

Question 29

Electrical Induction

Answer 29

Making something charged without touching it (causing polarization).

Question 30

Polarization

Answer 30

The rearrangement of charges within a material when exposed to an electric field,

Question 31

Electric Field (E)

Answer 31

The area around charged things where other charges feel a force. A vector quantity. SI unit: newton per coulomb (N/C)

Question 32

Electrostatic Force (Fe)

Answer 32

The force between electric charges. A vector quantity. SI unit: newton (N)

Question 33

Electrostatic Constant (k)

Answer 33

A number in Coulomb's law.

Question 34

Charge (q)

Answer 34

The fundamental property of matter that causes it to experience a force in an electric field. SI unit: coulomb (C)