# Physics Trolley Lab

9

Science

–

Trolley

Lab

-‐

Luca

Weller

–

AOI:

Environment

–

17/9/13

D.4

Materials:

-‐1

trolley

that

will

be

accelerated

-‐1

string

to

connect

the

trolley

and

the

weights

(ca.

2m)

-‐1

set

of

weights

that

will

accelerate

the

trolley

(up

to

5N)

-‐1

a.m.

to

measure

the

acceleration

Smart

^

(including

all

pieces)

D.1

Aim

of

Experiment:

^Trolley

The

aim

of

this

experiment

is

to

test

Sir

Isaac

Newton’s

second

law

of

motion

F=ma

(1).

We

will

be

testing

this

by

accelerating

a

test

trolley

(Trolley’s

weight:

667.29g)

attached

to

a

weight

hanging

off

a

table

over

an

acceleration

meter

(smart

pulley).

The

a.m.

(2)

is

connected

to

a

device

that

measures

and

graphs

any

de/acceleration

that

a

cured.

We

will

plot

the

results

and

determine

our

final

data

by

the

plots

-‐1

long

testing

plank

where

the

trolley

can

accelerate

on

-‐1

table,

or

other

type

of

elevation

so

that

the

weight

can

fall

somewhere

-‐1

paper

and

pencil

/

computer

for

plotting

results

Pulley

D.5

Method:

D.2

Hypothesis:

m

a

I

think

that

the

higher

the

force

the

faster

the

acceleration.

Since

F=ma

and

a=F/m

and

the

force

is

what

we

change,

we

will

need

a

higher

force

to

increase

the

acceleration.

If

the

equation

a=F/m

is

true

the

acceleration

and

the

force

will

be

directly

proportional

because

there

are

no

exponential

or

fraction

in

the

equation

which

makes

it

directly

proportional.

(The

force

is

the

weight

accelerating

the

trolley).

D.3

Variables:

Independent

variable:

-‐We

will

be

changing

the

Force.

{Newton’s

(N)}

Dependent

variable:

We

will

be

measuring

the

acceleration

of

the

trolley.

(m/s^2)(3)

Control

variable:

-‐We

will

keep

the

weight

of

the

trolley

the

same.

(667.29g)

-‐We

will

keep

the

testing

plank

the

same.

-‐We

won’t

change

any

properties

of

the

acceleration

meter.

1)

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