science consolidation 2.0 Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What happens to the pressure of a gas when it is heated at constant volume?

A

It increases.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

In which two states are the particles randomly arranged?

A

Particles are randomly arranged in liquid and gas.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

In which state are the particles only able to vibrate in a fixed position?

A

Particles in a solid can only vibrate in an fixed position.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which state cannot flow from place to place?

A

Solids cannot flow from place to place.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Particles in which state have no bonds?

A

Particles in gases have no bonds.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Particles in which state sit in a regular pattern and are held together tightly by bonds?

A

Particles in solids sit in a regular pattern and are held together tightly by bonds.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What happens to the pressure of a gas when it is heated at constant volume?

A

When the temperature of a gas is increased, its pressure increases.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

When 100 grams of water is boiled, what mass of steam is made?

A

100 grams of steam would be produced because of the conservation of mass.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the definition of solid?

A

The substance that cannot be compressed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Is sand a solid?

A

Yes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is the difference between mixture and solution?

A

Mixture contains two or more substances, which are not chemically combined. A solution contains two substances that are chemically mixed to form a new compound.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Give 3 examples of a solution.

A

salt water, rubbing alcohol and sugar dissolved in water.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the definition of Chromatography?

A

It is the method of separating colours.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the definition of dissolve

A

When a solid mixes in with a liquid so it is no longer visible.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is definition of evaporation?

A

process of removing the liquid from a dissolved solid by warming the mixture until all the liquid turns to gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is definition of filtration?

A

process of separating a mixture of an insoluble solid and liquid e.g sand and water.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what is definition of fractional distillation?

A

process of separating a mixture of liquids.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what is definition of insoluble?

A

Its mean when a solid cannot be dissolve.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what is definition of a mixture?

A

Two or more substance not chemically joined.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what is definition of opaque?

A

Not possible to see through.

21
Q

What do the animal cell and plant cell have in common?

A

They both have a nucleus.

22
Q

Which part of the cell controls what it does?

A

Nucleus.

23
Q

What is the Cytoplasm?

A

This is a jelly like stuff where most of the chemical reactions occur.

24
Q

What is the cell membrane?

A

This is a thin skin around the cell. It holds the cell together and also controls what goes in and out.

25
Q

What does the plant cell only have?

A

Chloroplasts.

26
Q

What is the chloroplasts?

A

These contain chlorophyll used for photosynthesis.

27
Q

What is the tissue?

A

A group of similar cells working together to perform a function.

28
Q

What is the cell wall?

A

A rigid outer coating made of cellulose, it gives support.

29
Q

Why is the nucleus called the control center of the cell?

A

This is because it is like the cells brain.

30
Q

Who were the cells discovered by?

A

They were observed by Hooke in the 1600s.

31
Q

What is reproduction?

A

The process of making another one of your species.

32
Q

Fill in the gaps: When a women has a baby inside her Uterus she is ……….

A

PREGNANT

33
Q

How does the baby get food and oxygen?

A

From the Umbilical cord.

34
Q

What are secondary sexual characteristics

A

big penis, body hair and deeper voice

35
Q

What are the male sex cells called?

A

Sperm cells.

36
Q

Where are the male sex cells made?

A

The male sex cells are made in the testes.

37
Q

What are the female sex cells called?

A

The female sex cells are called egg cells. Cilia are cells that line the gas exchange system.

38
Q

About how long does the menstrual cycle take?

A

The menstrual cycle takes about 28 days. After five days menstruation has normally stopped.

39
Q

What is ovulation?

A

Ovulation is the release of a mature egg cell. Fertilisation is when an egg and sperm join.

40
Q

What substance passes through the placenta to the baby?

A

Oxygen travels through the placenta to the baby

41
Q

What is the purpose of a spoiler on a car?

A

It creates down-force.

42
Q

What is g force?

A

A force acting on your body due to accelerations.

43
Q

What is the best way to measure force?

A

Use a force meter.

44
Q

What is the unit of force called?

A

Newton

45
Q

What can we say about the forces on an object that is not moving?

A

The forces are equal.

46
Q

What happens to the air resistance on a car as the car goes faster?

A

It increases.

47
Q

A force of 4 N acts on a lever 2 m from the pivot. What is the moment?

A

8n

48
Q

Is Gravity a contact force?

A

no

49
Q

What store of energy does friction always produce?

A

Friction always produces heat. Only sometimes does it produce gravitational potential energy.