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Question 1

• What is Pressure?

Answer 1

defined to be the amount of force exerted pen area.

Question 2

• What is the formula and units fon calculating pressure ?

Answer 2

Force: N
Area: M to the power of 2
Pressure: N/m to the power of 2

Pressure: Force/Area

Area: Force/Pressure

Force: Area x Pressure

Question 3

What is Boyle’s Law?

Answer 3

Boyle’s law is a gas law that states that a gas’s pressure and volume are inversely proportional.

Example: ventilation in lungs

Question 4

How can we calculate the moment of a force?

Answer 4

moment = force x distance from the pivots

Question 5

Therefore, the tunning effect of a force depends on it things:

Answer 5

1. The greater the force, the greater the turning effect line opening a doon when your in a hurry)
2. The further the force is from the pivot, the greater it’s turning effect.

Question 6

concept of moment

Answer 6

he moment is a way to tell how strong a push or pull makes something spin or turn.

Question 7

Usage of a moment in daily life

Answer 7

Opening and closing of a door, a long fixed hinge, and a sea saw

Question 8

Law of inertia

Answer 8

an object at rest remains at rest, and an object in motion remains at motion in constant speed, and in a straight line unless acted on by an unbalanced force

Question 9

Law of force

Answer 9

A larger net force acting on an object causes a larger acceleration, and an object with a larger mass requires more force to accelerate.

Question 10

Law of action and reaction

Answer 10

whenever an object exerts a force on a second object, the second object exerts an equal and opposite force on the fisrt

Question 11

what is density

Answer 11

is how much mass a substance has per unit of its volume

Question 11

Density calculations

Answer 11

density= mass/volume