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Stage 1
Answer 4 questions correctly in a row.
Two horses are trotting across a field. The kinetic energy of each horse depends on the horse's mass and speed.
| Horse | Mass (kg) | Speed ( dm/s ) | Kinetic energy (J) |
| Acorn | 450 | 18 | 729 |
| Patch | 450 | 36 | 2,916 |
Compare the two horses.
Acorn's mass is Patch's mass.
1/4
1/2
equal to
2 times
4 times
Acorn's speed is Patch's speed.
1/4
1/2
equal to
2 times
4 times
Acorn's kinetic energy is Patch's kinetic energy.
1/4
1/2
equal to
2 times
4 times
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