Motion And Machines

Question 1

Potential energy

Answer 1

Stored energy

Question 2

Kinetic energy

Answer 2

Energy due to motion

Question 3

Motion

Answer 3

The change of an objects position

Question 4

Reference point

Answer 4

A fixed object to determine whether another object has changed position

Question 5

Distance

Answer 5

By measuring an objects position at different times

Question 6

Speed

Answer 6

By dividing the distance traveled by the amount of time it takes to travel that distance

Question 7

Velocity

Answer 7

Refers to the distance an object moves over a given amount of time in a certain direction

Question 8

Acceleration

Answer 8

A change in velocity during a period of time

Question 9

Friction

Answer 9

Is a force that keeps objects from moving against other objects

Question 10

Momentum

Answer 10

The mass and the velocity of an object determine its momentum

Question 11

Static electricity

Answer 11

Occurs when electrical charges build up on the surface of an object

Question 12

Current electricity

Answer 12

Is the flow of electrons around a circuit

Question 13

Circuit

Answer 13

Unbroken path

Question 14

Conductor

Answer 14

Allows electricity to flow

Question 15

Short circuit

Answer 15

Can cause sparks and fires

Question 16

Insulator

Answer 16

Good insulators plastic wood glass

Question 17

Resistor

Answer 17

Reduced the flow of electrons

Question 18

Series circuit

Answer 18

Only one path

Question 19

Parallel circuit

Answer 19

Multiple paths

Question 20

Volt

Answer 20

Measurement of the amount of electrical push or force in a circuit

Question 21

Watt

Answer 21

Is the measurement of power or how fast work is done

Question 22

Ampere

Answer 22

Is the unit used to measure how much current flows through a given part of the circuit

Question 23

Electric cell

Answer 23

A wire connected the two metals

Question 24

Electrolytes

Answer 24

A liquid or paste

Question 25

Battery

Answer 25

One or more electrical cells

Question 26

Magnet

Answer 26

Is any material that has the ability to attract iron

Question 27

Magnetism

Answer 27

Magnetic force

Question 28

Magnetic field

Answer 28

Area of a Magnetic force

Question 29

Electromagnet

Answer 29

Is a coil of wire with a core attached to an electrical source

Question 30

Generator

Answer 30

A machine that converts motion into electrical energy

Question 31

Maglev

Answer 31

Electromagnets propel it along a guide way

Question 32

Electronic device

Answer 32

To communicate information

Question 33

Integrarted circuit

Answer 33

Small circuit with all components in a single unit

Question 34

Semiconductor

Answer 34

Can work as an conductor or an insulator

Question 35

RAM

Answer 35

Stored information

Question 36

CPU

Answer 36

Brain of the computer

Question 37

Rom

Answer 37

Memory and programs

Question 38

Electrical signal

Answer 38

Electric current that carries information

Question 39

Binary number system

Question 40

Galvani and Volta

Answer 40

Discovered metallic electricity and led to battery to control force to do work

Question 41

Oorsted

Answer 41

Current traveling through a wire produces a magnetic field

Question 42

Joseph Henry and Michael faraday

Answer 42

Moving a magnet around or through a loop of wire produces electricity in the wire

Question 43

William sturgeon

Answer 43

Adding a middle core to a coil of wire increases the magnetism This led to the discovery of the electromagnet