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18 Cards in this Set
- Front
- Back
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Speed = |
distance / time |
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Velocity = |
Ddisplacement / time |
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What is: a: u: v: t: s: |
a: acceleration u: initial velocity v: final velocity t: time s: displacement |
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on graph rise over run can equal |
acceleration |
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When doing rise over run what happens if the rise is angling down |
the rise is negative |
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when dropping or throwing up a rock down what is the acceleration |
always -9.8 |
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When dropping a rock down 12m what is the written down for the displacement |
-12 |
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what happens over time due to the big bang theory |
- temp decreases over time - space itself expands - Universe is always changing and getting more complex |
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Edward Hubble measured the distance to galaxies how? |
By measuring the brightness of Cepheid variable stars |
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How did Hubble measure the velocity of galaxies? |
By measuring the redshift in the immission spectrum (Dopper effect) |
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Speed Symbol and Unit |
S m/s |
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Mass Symbol and Unit |
M kg |
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distance Symbol and Unit |
d metres |
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time Symbol and Unit |
t seconds |
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Displacement Symbol and Unit |
S metres |
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acceleration Symbol and Unit |
a m/s -2 |
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weight Symbol and Unit |
W N |
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Velocity Symbol and Unit |
V m/s |
