Paper 1 Physics - Newtons Laws

Question 1

Normal Force (N)

Answer 1

The force or the component of a force which a surface exerts on an object with which it is in contact, and which is perpendicular to the surface

Question 2

Frictional Force (f)

Answer 2

The Force that opposes motion of an object and which acts parallel to the surface

Question 3

Static Frictional Force (Fsmax)

Answer 3

The force that opposes the tendency of motion of a stationary object relative to a surface

Question 4

Kinetic Frictional Force(Fk)

Answer 4

The Force that opposes the motion of a moving object relative to the surface

Question 5

Newtons First Law of Motion

Answer 5

A body will remain in its state of rest or motion at constant velocity unless a non zero/net force acts on it

Question 6

Newtons Second Law of motion

Answer 6

When a net force acts on an object, the object will accelerate in the direction of the force and the acceleration is directly proportional to the force and inversely proportional to the mass of the object

Question 7

Newtons Third Law of Motion

Answer 7

When object A on object B, object B simultaneously exerts a force of equal magnitude on object A

Question 8

Newtons Law of Universal Gravitation

Answer 8

Each body in the universe attracts every other body with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centres

Question 9

Weight

Answer 9

The Gravitational force the Earth exerts on or near its surface

Question 10

Difference between mass and weight

Answer 10

Mass- A measure of how much matter an object contains
Weight- Weight is a measurement of the gravitational force on an object.

Question 11

Weightlessness

Answer 11

the state or condition of having little or no weight due to lack of apparent gravitational pull.