Question
Highlight the one with more Kinetic Energy and briefly explain why.
A 25 kg rock and 35 kg rock rolling down a hill?
A car traveling 25 mph or a bike traveling 10 mph?
An ant running down a sidewalk or a toddler running down a sidewalk?
A full plane or an empty plane (both are flying at the same velocity)?
Write down one real-world example of kinetic energy.
A 25 kg rock and 35 kg rock rolling down a hill?
A car traveling 25 mph or a bike traveling 10 mph?
An ant running down a sidewalk or a toddler running down a sidewalk?
A full plane or an empty plane (both are flying at the same velocity)?
Write down one real-world example of kinetic energy.
Answers
DrBob222
A 25 kg rock and 35 kg rock rolling down a hill?
KE = 1/2*m*v^2
more mass more KE
A car traveling 25 mph or a bike traveling 10 mph?
See above. Higher velocity more KE
An ant running down a sidewalk or a toddler running down a sidewalk?
see above. Compare mass of an ant with mass of a toddler.
A full plane or an empty plane (both are flying at the same velocity)?
See above. A full plane has more mass than an empty plane, assuming both planes have the same mass when empty.
KE = 1/2*m*v^2
more mass more KE
A car traveling 25 mph or a bike traveling 10 mph?
See above. Higher velocity more KE
An ant running down a sidewalk or a toddler running down a sidewalk?
see above. Compare mass of an ant with mass of a toddler.
A full plane or an empty plane (both are flying at the same velocity)?
See above. A full plane has more mass than an empty plane, assuming both planes have the same mass when empty.