Practical Physics

Question 1

What is the formula for density?

Answer 1

density = mass ÷ volume. D=M/V

Question 2

what unit is density measured in?

Answer 2

kg/m³

Question 3

What does Boyle’s law state?

Answer 3

the greater the pressure, the lower the volume

Question 4

What is the formula for pressure?

Answer 4

pressure = force ÷ area. P=F/A

Question 5

What does Charles’ law state?

Answer 5

The volume of a gas varies directly with the absolute temperature at a constant pressure

Question 6

What is the formula for Charles’ law?

Answer 6

V₁ / T₁ = V₂ / T₂

Question 7

What is the formula for moment?

Answer 7

moment = force x distance. M=FxD

Question 8

What is moment?

Answer 8

turning effect

Question 9

What is the principle of moment?

Answer 9

sum of clockwise action = sum of anticlockwise moment

Question 10

how would you find the density of an irregular object

Answer 10

by using a Eureka can to find the volume. Measure the mass and divide it by the volume.

Question 11

what is the formula for Boyle’s law

Answer 11

P1 x V1 = P2 x V2