Physics equations

Question 1

What equation links: Mass, Weight and Gravitational field strength?

Answer 1

Weight(W) = Mass(m) × Gravitational Field Strength(g)

Question 2

What equation links: Distance, work done and force?

Answer 2

Work done(W) = Force(F) x Distance(s)

Question 3

What equation links: Spring constant, Force and Extension?

Answer 3

Force applied(F) = Spring Constant(k) x Extension(e)

Question 4

Equation linking: Force normal to a surface, Pressure and Area of Surface

Answer 4

Pressure(p) = Force normal to a Surface(F) / Area of Surface(A)

Question 4

Equation that links: Moment of Force, Force and Distance?

Answer 4

Moment of Force(M) = Force(F) x Distance(d)

Question 5

Equation linking: Time, Speed and Distance Traveled.

Answer 5

Distance Traveled(s) = Speed(v) x Time(t)

Question 6

Equation linking: Change in Velocity, Acceleration and Time Taken.

Answer 6

Acceleration(a) = Change in Velocity(Av) / Time Taken(t)

Question 7

Equation linking: Acceleration, Mass and resultant force

Answer 7

Resultant Force(F) = Mass(m) x Acceleration(a)

Question 8

Equation linking: Mass, Velocity and Momentum

Answer 8

Momentum(p) = Mass(m) x Velocity(v)

Question 9

Equation linking: Gravitational Potential, Gravitational field strength, Mass and height

Answer 9

Gravitational potential(Ep) = Mass(m) x Gravitational field strength(g) x height(h)

Question 10

Equation linking: Mass, Speed and Kinetic Energy

Answer 10

Kinetic Energy(Ek) = 0.5 x Mass(m) x (Speed(v))^2

Question 11

Equation linking: Energy Transferred, Power and Time

Answer 11

Power(P) = Energy Transferred(E) / Time(t)

Question 12

Equation linking: Power, Work Done and Time

Answer 12

Power(P) = Work Done(W) / Time(t)

Question 13

Equation linking: Total input energy, Efficiency and Useful output energy

Answer 13

Efficiency = Useful energy Output / Total energy input

Question 14

Equation linking: Useful power output, Efficiency and Total power input

Answer 14

Efficiency = Useful power output / Total power input

Question 15

Equation linking: Frequency, Wavelength and Wave Speed

Answer 15

Wave Speed(v) = Frequency(f) x Wavelength(^)

Question 16

Equation linking: Potential difference, Resistance and Current

Answer 16

Potential Difference(V) = Current(I) x Resistance(R)

Question 17

Equation linking: Charge flow, Current and Time

Answer 17

Charge flow(Q) = Current(I) x Time(t)

Question 18

Equation linking: Potential Difference, Current and Power

Answer 18

Power(P) = Potential Difference(V) x Current(I)

Question 19

Equation linking Power, Current and Resistance

Answer 19

Power(P) = (Current(I))^2 x Resistance(R)

Question 20

Equation linking: Time, Power and Energy Transferred

Answer 20

Energy Transferred(E) = Power(P) x Time(t)

Question 21

Equation linking: Charge Flow, Energy Transferred and Potential Difference

Answer 21

Energy Transferred(E) = Charge Flow(Q) x Potential Difference(V)

Question 22

Equation linking: Density, Volume and Mass

Answer 22

Density(p) = Mass(m) / Volume(V)