1. A velocity-time graph shows a buggy increasing from 1 m/s to 7 m/s over 4.0 s. What is its acceleration?
The acceleration is change in velocity divided by time: (7 - 1) / 4.0 = 1.5 m/s2.
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The acceleration is change in velocity divided by time: (7 - 1) / 4.0 = 1.5 m/s2.
Elastic energy is the triangular area under the graph: 0.5 x 0.12 x 18 = 1.08 J.
Ohm's law gives I = V / R = 9 / 3 = 3.0 A.
Centripetal acceleration is always directed toward the centre of the circular path.
A ray entering a slower optical medium bends toward the normal at the boundary.
64 to 8 is three halvings: 64, 32, 16, 8. Three half-lives take 18 minutes, so one half-life is 6 minutes.
QCE Year 11 Physics practice should help students connect equations to visible evidence: motion, energy, electric fields, waves, magnetic flux, and light-and-matter data. These examples preview that visual reasoning before the no-login Physics demo.
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