Investigating Leavers

Investigating Leavers

Aim:
To investigate the advantage of using a lever to lift a load

Equipment:
- 30cm Ruler
- A pencil
- 2 plastic cups
- Weights (10g)
- Blue Tak

Method:

1. Tape the two cups to either side of the ruler centred on the 2cm and 38cm mark
2. Place the pencil under the ruler at the 15cm mark. The pencil will act as the pivot point.
3. Add 10 marbles to the cup at the zero end of the ruler.
4. Add marbles one by one to the other cup. (at the 30cm end) until the cups are balanced.
5. Record how many marbles were needed
6. Move the pencil to the 13cm mark and repeat steps 4 and 5. 
7. Move the pencil to the 10cm mark and repeat steps 4 and 5.

Results:

Experiment	Side Length	Marbles In Cup 1	Marbles In Cup 2
1	1:1	10	11
2	2:2	10	7
3	3:3	10	3

Kashaye and Michelle