Distance time graph/Acceleration/Velocity

What does the gradient of a distance time graph tell us

The objects speed

How to calculate gradient in distance time graph

Distance traveled/Time taken

Change in y/change in x

What does a curve is distance time graph tell us

Acceleration or deceleration

How to get speed on graph at 100 seconds

Mark point at 100 seonfs

Draw tangent and then work out gradient

What does acceleration of object tell us

The change in velocity over time

How to calculate acceleration

Acceleration(m/s²)= Change in vekcoity(m/s)/Time(s)

What is deceleration

When object slows down change in velocity is negative value

What does gradient of velocity time graph tell us

It’s acceleration

What does horizontal line in velocity time graph mean

What does upward sloping line mean

Downward sloping line mean

A)Object is travelling at a constant velocity

B)Object is accelerating

C)Object is decelerating

How to calculate distance traveled in velocity time graph

Total area under graph

What to do if graph is like this

Count number of boxes under neath and estimate total for half squares

Then calculate area of 1 square then multiply by total

How to calculate uniform acceleration (constant acceleration)

What’s an objects acceleration when it falls towards the surface of earth and what’s a due to

9.8 m/s²

Due to the force of gravity acting on object m

When skydiver falls what upward force of friction with air particles does it experience

Air resistance

After come point what happens with sky diver

The force of air resistance balanced the force due to gravity. At this point object stops accelerating moves at a constant velocity which is called terminal velocity

What does terminal velocity apply to

Any object through a fluid

What does terminal velocity depend on

Their shape as some objects experience a greater force of friction do they will have a lower terminal velocity

-Also area