Sci Eye Air Forces S096LS43 S120LS43

Scientific Eye Series 10 (1997)
Eight programmes from the broadcast schools' science series, each of which examines a single topic, with individual stories being used to illustrate more general scientific ideas.
The individual titles are: Safety; The Solar System; Air Forces; Electricity; Rust; Fire; Rocks; Limestone.
1. What is the speed at which top cyclists cycle?
2. What changes speed?
3. How does the rider move forward?
4. What are the counter forces?
5. When does the speed of the bike remain constant?
6. What is the forward force for :
a. Truck
b. Skater
c. Train
d. Dogsled
e. Jet ski]
f. Motorbike
g. Yacht
7. What is the backward force for:
a. Truck
b. Skater
c. Train
d. Dogsled
e. Jet ski]
f. Motorbike
g. Yacht
8. How can the cyclist change her speed?
9. What happens to the counter forces?
10. How does a racing bike stop?
11. Which force pulls us down to the earth?
12. How can the skydiver slow down?
13. Which force slows them down?
14. How can cyclists reduce air resistance? List 3 things.
15. Why do they ride so close to each other?