Energy Flashcards
1
Q
What energy is taken in from food?
A
Chemical
2
Q
What happens when we climb upwards?
A
The chemical energy is transferred to kinetic energy.
3
Q
What happens when we reach the top?
A
The kinetic energy is converted to gravitational potential energy
4
Q
What is the work done?
A
F delta H = mg delta H
the minimum change in PE
5
Q
What is kinetic energy?
A
1/2mv^2
6
Q
What is PE lost?
A
Kinetic energy gained
mg delta H = 1/2mv^2
g delta H = 1/2 v^2
v = square root 2g delta H
7
Q
How do you convert ms^-1 into mph?
A
ms^-1 x 2.237 = mph
8
Q
kmph to mph?
A
kmph (x5) (/8) = mph
