5.13 Investigating Motion

Question 1

How would you investigate how force and and mass affect acceleration?

Answer 1

1) set up trolley with card with gap
2) find acceleration of trolley by measuring length of card and put in software and light gate can measure velocity
3) connect trolley to piece of string
4) weight of hook and mass will provide accelerating force
5) weight of hook and mass will accelerate mass and trolley
6) mark starting line
7) hold string as taut and let go
8) record acceleration measured by light gtas

Question 2

What is accelerating force equal too ?

Answer 2

Mass of hook x acceleration due to gravity

Question 3

What does it mean that both the trolley and weight of hook and mass accelerate

Answer 3

It will be the acceleration of the whole system

Question 4

Why should you mark starting line

Answer 4

So it travels at the same distance every time

Question 5

How would you change the experiment to investigate the effect of mass

Answer 5

Add masses to the trolley not the hook

Question 6

How would you change the experiment to investigate the effect of force ?

Answer 6

Start will all masses in the trolley and one at a time transfer masses to hook.

Question 7

In the investigating the effect of the force experiment why does the mass stay the same

Answer 7

Because it’s a system so mass only transferred from one part of the system to another