17709274
Description
Flashcards by Aafreen Butt, updated more than 1 year ago
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Created by Aafreen Butt
over 5 years ago
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| Question | Answer |
| efficiency | useful output/total input |
| gravitational potential energy (2) | weight x height mass x gravity x height |
| kinetic energy | 1/2 x mass x velocity"2" |
| weight (2) | mass x gravity (10) density x volume x 10 |
| speed (2) | distance/time frequency x wavelength |
| frequency | 1/time period |
| force on a spring | spring constant x extension |
| water pressure | 10 x depth x density |
| upthrust | weight of water displaced |
| current | charge/time |
| voltage | energy/charge |
| resistance | voltage/charge |
| pressure | force/area |
| stopping distance | braking distance + thinking distance |
| power (3) | current"2" x resistance energy/time current x voltage |
| acceleration | change in velocity/time |
| force | mass x acceleration |
| work done | force x distance |
| apparent weight | true weight - upthrust |
| equation of motion | final velocity"2" = initial velocity"2" + 2 x (10 forward -10 backward) x distance |
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