Fichas

Unit 2.4

Abdirahman mohamed Inglés 20 fichas

Fichas del conjunto (20)

1What is Density?A measure of the mass per unit volume of a substance.
2What does density measure?Density measures grams and centimeter cubed.
3Which is more denser stones or feathers?Stones are because if you drop it, the stone will fall straight down and the feather will float.
4Which is more denser between liquids and solids of the same substance?Solids because when they are placed in liquids they usually sink.
5What happens to the density of solids and liquids when they are heated?When they are heated the particles in a solid and liquid move a little further apart, causing the substance to expand slightly.
6What does density depend on?Density depends on the amount of substance and the space it takes up and so its units includes the units of mass and volume.
7What happens to a gas when they are heated?When a gas is heated the particles spread further apart, lowering its density even more.
8When does smoke rise?Smoke rises when hot air is less than cold air and will rise above it
9Why does a hot air balloon rise?The over-all density of a hot air balloon is less than the density of the air balloon is less than the density of the air.
10What is density measured in?Density is measured in grams and per centimeter cubed.
11What is mass?Mass measures how much matter in a substance.
12What units are used to measure mass?They are grams, kilograms and tones
13What does density depend on?It depends on volume.
14What is volume?Volume measures how much space is occupied by a substance.
15What is the formula for density?
16What is volume measured in?It is ML and L
17Which items will float and sink and give examples?
18How does water act above 4 degrees Celsius?It expands when cools and contact when heated.
19What term best describes( how much matter is in a object)?Mass
20What term best describes( the quantity measured in mL)?Volume