Forces on a Parachute

LO: to explain how changes in forces on a parachute effect it’s

speed

TASK: friction stories

Remember the bigger force should have a bigger arrow

ParachutesA parachute slows a falling

person from 120mph to 10mph so they can land safely.

How do you think a parachute achieves this (think about the last few lessons)

Can you explain the forces on the

parachute? (video)

Remember1.Unbalanced forces = accelerate or slows down.2.Balanced forces= steady (same) speed or stationary

EXT

• FORCES ON A ROCKET TRAVELLING INTO SPACE

Complete worksheet

Ext questions: 1)How can a parachutist increase their fastest speed (terminal velocity)?2)Force diagrams for a rocket taking off

Summary

Learning Logs:

In your book, answer 3 of the following statements:

1. In the lesson I learnt….

2. I was surprised by….

3. One thing I liked most about today was….

4. The main thing I want to know more about is…..

5. I was interested in……

6. One thing I’m not sure about is…..

Making a parachute

Parachute testingWeigh an approximately 50g piece

of plasticine.Drop this from a height of 1.5m and

work out it’s speed. Do this 5 times and work out an average speed.

Construct a parachute for the plasticine and repeat the above, calculating an average speed.