Tricks

Question 1

Sides with 3 and 4 give 5 by Pythagorean theorem, how can work out 9 and 12?

Answer 1

Sides multiplied by 3 so final length multiplied by 3= 5x3 = 15

Question 2

When is velocity maximum
When displac,ent

Answer 2

When acceleration = to 0

When velocity set to 0

Question 3

If keep mass constant then what else

Answer 3

Volume

So that means increase of low get decrease area

And when it’s same factor it forms a square relationship

Question 4

Ratio of two things divided by each other is also

Answer 4

Ratio of first divide by ratio if secodn

Question 5

Need to integrate to find

Answer 5

When something is changing

Question 6

Remember a number between 0 and 1 ti the power of something is

Answer 6

Very small

Question 7

Remember rule for triangles

Answer 7

Triangle can only exist if any two sides can add to be greater than third

Question 8

Remember if velocity is constant at a point , it means all the power is given to the

Answer 8

Gravatuonal potential energy

This is constant velocity so do p= fv

And find the gradient

P=FV ONLY WHEN F AND V SAMS DIRECTION AND V IS CONSTANT AND F TOP

Question 9

Y = root x?

Answer 9

This is curved like I V for a filament lamp