Science

Question 1

any form of disturbance that carries energy from one place to another.

Answer 1

Wave

Question 2

Waves that require a medium for transmission

Answer 2

Mechanical waves

Question 3

Waves that do not require any medium for transmission

Answer 3

Electromagnetic waves

Question 4

The direction of the particles is perpendicular to the direction of the motion of the wave’s propagation

Answer 4

Transverse

Question 5

The direction of the particles is parallel to the direction of the motion of the wave’s propagation

Answer 5

Longitudinal

Question 6

The particles travel in circular motion.

Answer 6

Surface

Question 7

the part of the wave where molecules are compressed or where there are shorter wavelengths.

Answer 7

Compression

Question 8

the part of the wave where molecules are spread out or stretched.

Answer 8

rarefaction

Question 9

Where does sound travel faster

Answer 9

Warmer air

Question 10

Increase of temperature=__________

Answer 10

increase the speed of sound

Question 11

The longer the wavelength the ____________ the energy

Answer 11

lesser/lower

Question 12

the shorter the wavelength the __________ the energy.

Answer 12

Higher/greater

Question 13

As you move from red to violet in the visible spectrum the __________ _________

Answer 13

Energy increases

Question 14

an electromagnetic wave that can travel even without a medium.

Answer 14

light

Question 15

This is the property of a wave that refers to the bouncing back of waves.

Answer 15

Reflection

Question 16

This is the bending of light when it passes through different media.

Answer 16

Refraction

Question 17

This is the bending of a wave - when it passes through a gap or around edges.

Answer 17

Diffraction

Question 18

This is the property of a light wave that allows an unpolarized light to vibrate or to focus in one direction or on a single plane

Answer 18

Polarization

Question 19

measures both kinetic and potential energy contained by molecules in an object.

Answer 19

Heat

Question 20

measures average kinetic energy of molecules in substance.

Answer 20

Temperature

Question 21

Relationship between molecular movement and temperature

Answer 21

molecular motion

Question 22

the difference in charge between two points.

Answer 22

Voltage

Question 23

the rate at which charge is flowing

Answer 23

Current

Question 24

a material’s tendency to resist the flow of charge (current).

Answer 24

Resistance

Question 25

The fundamental relationship between voltage, current and resistance in an electrical or electronic circuit

Answer 25

Ohm’s law

Question 26

defined as the capacity to do electric work

Answer 26

electrical energy

Question 27

defined as the ‘rate of work done per unit charge’ or ‘rate of energy transfer per unit time’.

Answer 27

Electrical Power

Question 28

refers to the rate at which electrical energy is used or produced in a circuit

Answer 28

Electrical Power

Question 29

the total amount of energy consumed or produced over a period of time.

Answer 29

Electrical energy

Question 30

hdjeheh

Answer 30

yes