Mechanics 2

Question 1

Centripetal acceleration

Answer 1

The acceleration acting towards the centre of a circle for an object undergoing uniform circular motion

Question 2

Centripetal force

Answer 2

The force acting towards the centre of the circle for an object undergoing circular motion

Question 3

Pressure

Answer 3

Force per unit of area

Nm-2

Question 4

Archimedes principal

Answer 4

When an object is immersed in a fluid it will experience an up thrust equal in magnitude to the weight of the fluid displaced

Question 5

Law of floatation

Answer 5

When an object floats the weight of the object equals the weight of the fluid displaced

Question 6

Boyles Law

Answer 6

For a fixed mass of a gas at a fixed temperature the pressure of the gas is inversely proportional to the volume of the gas

Question 7

Newtons Law of universal gravitation

Answer 7

Any two point masses in the universe attract each other with a force that is directly proportional to the product of the masses and inversely proportional to the square of the distance between the point masses