Forces

Question 1

Definition of force

Answer 1

Anything that causes an object to move or change its velocity

Question 2

Frictional force definition

Answer 2

A force that resists the sliding or rolling if one solid object over another

Question 3

Advantages of friction

Answer 3

Being able to walk
Breaks stopping

Question 4

Disadvantages of friction

Answer 4

Creates heat, wasting energy
Friction produces wear and tear, reducing product lifespan

Question 5

Definition of gravitational force

Answer 5

A force that pulls objects with mass towards each other

Question 6

Weight formula

Answer 6

F=ma
Force=mass×weight

Question 7

Newton’s 1st law

Answer 7

An object that isnt moving wont move
An object in motion will stay in motion

Question 8

Newton’s 2nd law

Answer 8

The acceleration of an object is directly proportional to the strenght of the force applied to the object
F=m(a)

Question 9

Newton’s 3rd law

Answer 9

For every action there is an equal and opposite reaction

Question 10

Mass to weight formula

Answer 10

W=m(g)

Question 11

Law of the lever

Answer 11

Weight 1 x Distance 1 = Weight 2 x Distance 2
W1 x D1 = W2 x D2

Question 12

Lever

Answer 12

Any rigid body that is free to move about a fixed point