The bench
Ten practicals. Each one states an aim and a method, then lets you change the quantities and read the instruments.
- Motion trackMotion · Check the constant-acceleration equations against a timed run.v = u + at
- Force trolleyForces · See that acceleration depends on the resultant force and the mass.a = F / m
- Spring balanceForces · Measure a spring constant from the extension caused by a known weight.k = F / x
- Drop towerEnergy, work and power · Watch gravitational energy become kinetic energy as a mass falls.mgh = (1/2)mv²
- Collision cartsMomentum · Compare momentum and kinetic energy before and after a collision.m1u1 + m2u2
- Ripple tankWaves and sound · Measure frequency and wavelength, then check the wave speed.v = fλ
- Pendulum timerWaves and sound · Time several swings and compare the period with the formula.T = 2π√(L/g)
- Ray boxLight · Log angles and see that sin i / sin r stays equal to n.n = sin i / sin r
- Circuit benchElectricity · Predict the current, then close the switch and read the meters.I = V / R
- Heat canHeating · Predict the temperature rise from a heater running for 60 s.E = mcΔθ
- Pressure padDensity and pressure · Compare pressure from a force on an area with pressure from a depth of liquid.P = F / A