Physics

Question 1

What are the properties of gas

Answer 1

Volume
Pressure
Temperature

Question 2

What is boyles law

Answer 2

The pressure and volume of gas are inversely proportional to eachother

Question 3

What equation is this p1v1:p2v2

Answer 3

Boyles law

Question 4

What is Charles law

Answer 4

It’s the law about how gas expands

V / t

Question 5

What is an isobar

Answer 5

It is the volume of gas and temperature at a constant pressure is know as an isobar or isotopecs and it always gives a straight line on a graph

Question 6

What is gay Lussacs law

Answer 6

The pressure exerted by a gass of a given mass is directionally proportional to the temperature

Question 7

What is the combined gas laws

Answer 7

P1xv1 / t1. : P2xv2 /t2

Question 8

What is a adibatic process

Answer 8

The thermodynamic process in Wich there is no exchange of heat during expansion and compression

Question 9

What is the ideal gas law

Answer 9

Ideal gas molecules do not attract or repel each other

Question 10

What is is the other ideal gas law

Answer 10

Ideal gas molecules themselves take up no volume

Question 11

What is Dalton’s law

Answer 11

The total pressure of a mixture of gases is equal to the sun of partial pressures of the individual component gases

Question 12

What is a ray

Answer 12

A ray is the direction of the path taken by light

Question 13

What is a beam

Answer 13

Is a stream of light energy they can diverge converging or parallel

Question 14

What properties do shadows have

Answer 14

Penumbra : partial shadow
Umbra : main shadow

Question 15

On a plane mirror what are its properties

Answer 15

Incident ray
Reflected ray
Angle of incidence
Angle of reflection

Question 16

What is a real image

Answer 16

Like an image projected by a projector

Question 17

What is a virtual image

Answer 17

An image you see in a mirror or magnifying glass

Question 18

What is parallax Error

Answer 18

It’s where you see a pointer in a different position like on a gauge cause your not directly above it

Question 19

What is refraction

Answer 19

Refraction is the change in the direction of a wave passing from one medium to another

Question 20

What is snells law

Answer 20

It is the change of a beam when it goes into water or out of it

Question 21

What is the refractive index

Answer 21

It describes how fast light travels through a material

Question 22

What is total internal reflection

Answer 22

It is a phenomenon where light will change angle coming out of a medium until a critical point where it bounces of the bottom surface reflecting internally

Question 23

What are the different types of mirrors

Answer 23

Parabolic
Curved
Flat
Concave
Spherical

Question 24

What are the common terms of lenses

Answer 24

Principle axis
Principle focus
Focal length
Optical centre
Centre of curvature

Question 25

What is a converging lens

Answer 25

It’s a lens that concentrates scattered rays to a principle focus

Question 26

What is a diverging lens

Answer 26

It takes a concentrated principle focus and spreads it out

Question 27

Give an example of a virtual image

Answer 27

Magnifying glass image or a mirror

Question 28

What is a mechanical wave

Answer 28

Is an oscillation of matter and transfers energy through a medium like shaking a box of sand

Question 29

What is a longitudinal wave

Answer 29

Sound and pressure waves and is parallel to the motion of energy

Question 30

What is a transverse wave

Answer 30

When the movement of the particles at right angles examples being light and waves at sea

Question 31

What is an eltromagentic wave

Answer 31

They don’t need a medium to travel and they are transverse

Question 32

What is de brogikes hypothesis

Answer 32

It’s the theory of how matter behaves as waves

Question 33

What is sound

Answer 33

It refers to how loud or soft a noise is through the disturbance of matter usually air

Question 34

What does loudness looks like in a wave

Answer 34

It looks like a taller wave

Question 35

What does pitch look like on a wave

Answer 35

The amount of peaks increase (frequency)

Question 36

What is a progressive wave

Answer 36

They travel continuously in a certain direction in a medium

Question 37

What is a stationary wave

Answer 37

They are produced when two similar waves collide and appear stationary

Question 38

How do waves reflect

Answer 38

They can hit objects then bend and reverse going from hill to a dip on collision and heading back

Question 39

What is the superstition principle hint (waves colliding )

Answer 39

When a pulse has the same shape from two different directions it will collide it amplitudes will be higher than the the amplitudes of the originals and then will recover their individual shapes and pass through eacother

Question 40

What is the Doppler effect

Answer 40

As an object moves like a truck the sounds compress to a high frequency so it sounds louder coming towards you and when it passes it sounds quiter and gradually fades

Question 41

Elements

Answer 41

Only contain one type of atom

Question 42

Compounds

Answer 42

Contain two or more types of atoms

Question 43

What is a molecule

Answer 43

Is the smallest thing a substance can be divided into

Question 44

What is a molecule

Answer 44

Is the smallest thing a substance can be divided into

Question 45

How many electrons in the first shell or k

Answer 45

2

Question 46

What’s is the equation for pressure at the base of a colum

Answer 46

Pxgxh. Pressure x gravity x height Or Density x volume x gravity ————————————— Base area

Question 47

What is a hydrometer used for

Answer 47

Measuring specific density ( looks like a tube with a float in it )

Question 48

What is momentum

Answer 48

Mass x velcoity

Question 49

What is velcoity

Answer 49

Displacement / time

Question 50

How to convert Celsius to kelvin

Answer 50

+273.15