Force

Question 1

Define:
a) Force.

Answer 1

Force is a push or pull exerted on an object.

Question 2

Force is a ___ quantity

Answer 2

Vector

Question 3

Mathematical representation of force .

Answer 3

F=ma or F= mg

Question 4

C.G.S unit of force:

Answer 4

Dyne

Question 5

S.I. unit of force:

Answer 5

Newton

Question 6

1N = ??dyne?

Answer 6

10⁵

Question 7

What is net force?

Answer 7

If two forces act on an object simultaneously, the effect on the object is called net force.

Question 8

Effects of force?

Answer 8

Force Can change state of:
1•Speed
2•Shape
3• Size
4• Position/State
5• Direction

Question 9

Types of forces

Answer 9

Contact forces and non contact forces.

Question 10

What are the types of Contact forces?

Answer 10

Muscular,Tension,Normal,Friction

Question 11

Types of Non contact Forces

Answer 11

Gravitational, Electrostatic, Magnetic

Question 12

Define Muscular force

Answer 12

The force resulting due to action of muscles.

Question 13

Define Friction force

Answer 13

The force that resists motion.

Question 14

Define tension force

Answer 14

Tension force is the force applied due to being pulled or pushed

Question 15

Define Normal force

Answer 15

The force perpendicular to the surface.

Question 16

Define magnetic force

Answer 16

The force exerted by a magnet or piece of iron.

Question 17

Define electrostatic force

Answer 17

The force exerted by a charged body to an unchanged or charged body.

Question 18

Define gravitational force

Answer 18

The attractive force between two objects that have mass.

Question 19

What is the mathematical representation of Weight?

Answer 19

m×g(Vertical)/ m×a(Horizontal)
[G= 10 on earth
2 on the moon(1.6)

Question 20

What is the mathematical representation of Weight?

Answer 20

m×g(Vertical)/ m×a(Horizontal)
[G= 10 on earth
2 on the moon(1.6)