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-CALCULATIONS-
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-Concepts-
•Energy: W=ΔPE=ΔKE Joules (J) capacity for doing work •Gravitational potential energy: PE=mgh Joules (J) Energy due to gravity being at a height. •Kinetic Energy: KE=1/2mv^2 Joules (J) energy due to movement •Spring constant: F=kx and Mg=kx Newton/meter(N/m) A measure of the elasticity of spring. We used this to measure how much energy the rat trap has. •Spring potential energy: PE=1/2kx^2 Joules(J) Energy due to compression or expansion of elastic PE •Friction: force that affects motion. Newton (N) •Pressure: P=force/area N/m or pascal The amount of force on a certain area •Entropy: Disorder, heat is lost to environment and can't be used, randomness •Power: P=w/t Joules/seconds(J/s) or Watt (w) rate of doing work |