2795390
Description
Flashcards by e.cooneyhunt, updated more than 1 year ago
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Created by e.cooneyhunt
over 9 years ago
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| Question | Answer |
| EQUATION FOR SPECIFIC HEAT CAPACITY | E = mass x s.h.c. x change in temperature Energy = mc(delta)t |
| EQUATION FOR RESISTORS IN SEIRES | Rs = R1 + R2 |
| EQUATION FOR RESISTORS IN PARALLEL | Rp = R1 x R2 / R1 + R2 OR 1/Rp = 1/R1 + 1/R2 + 1/R3 |
| EQUATION FOR ENERGY TRANSFERRED | E = current x voltage x time E=IVt (Note: also P instead of VI) |
| EQUATION FOR RESISTANCE OF A CIRCUIT | Voltage = Current x Resistance V = IR (rearranged) |
| EQUATION FOR THE CHARGE OF A CIRCUIT | charge (C) = current (A) x time (s) Q=It |
| EQUATION FOR THE POWER OF AN APPLIANCE | Power (W) = Current (A) x P.D. (V) P = IV |
| EQUATION FOR THE SPECIFIC LATENT HEAT | Energy = mass x specific latent heat E=mL |
| EQUATION FOR THERMAL CAPACITY | Thermal capacity = mass (kg) x s.h.c. (J) C=mc |
| What is the SI Unit for Specific Latent Heat? | J/Kg (Joules per kilogram) |
| EQUATION FOR THE RESISTIVITY OF A MATERIAL | p = Resistance x cross sectional area / length p = RA / l |
| What are the positive prefixes used for SI Units? | (G) Giga - 1000 000 000 (M) Mega - 1000 000 (k) Kilo - 1 000 (h) hecto - 100 (da) deca 10 |
| What are the negative prefixes used for SI Units? | (d) deci 0.1 (c) centi 0.01 (m) milli 0.001 (u) micro 0.000001 (n) nano 0.000000001 |
| EQUATION FOR THE SPEED OF ELECTROMAGNETIC WAVES | speed = frequency x wavelength c = fn |
| What is the SI Unit for Current? (I) | Amperes (A) |
| What is the SI Unit for Specific Heat Capacity? | C°/kg degrees per kilogram |
| EQUATION FOR BOYLE'S LAW (constant temperature) | Initial = Final P1V1 = P2V2 (P = pressure, V = volume) |
| What are J, V and C measuring, respectively? | Energy Transferred J is the energy transferred in joules V is the potential differences in volts C is the charge in coulombs |
| SECOND EQUATION FOR ENERGY TRANSFERRED (Hint = involving charge) | E = voltage x charge E=VQ |
| What is the term for ohms/meter? | The Resistivity of a Material |
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