1. a) joules
weight
distance
b) force
meter
weight
d) energy
2. 5N times 2m = 10J
4. 200J
weight and distance
Q1. 50 000 / 4 000 = 12.5m
4.10
10 June 2011
11:51
· 4.10 understand that work done is equal to energy transferred
PFY p.112
Collins p. 91
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