GCSE Physics Paper 1 Quiz

What is the formula for kinetic energy?

• KE =is the kinetic energy

• 𝑚=m is the mass

• 𝑣=v is the velocity

• E = mgh

• E = 1/2 mv^2

• E = 1/2 mgh

• E = mv^2

What is the equation for gravitational potential energy (GPE)?

• m = mass (kg)

• g = acceleration due to gravity (9.81 m/s²)

• h = height (m)

• GPE = 1/2 mv^2

• GPE = mh

• GPE = mg

• GPE = mgh

How much energy does a 5-watt light bulb use in one hour?

Energy (in watt-hours)=Power (in watts)×Time (in hours)

1hour=60minutes×60seconds/minute=3600seconds

• 18,000 J

• 5,000 J

• 3,600 J

• 1,800 J

What is the definition of efficiency?

• Useful energy out divided by total energy in

• Total energy in divided by useful energy out

• Total energy out divided by useful energy in

• Useful energy in divided by total energy out

What are the units for current (I) and charge (Q)?

• Ohms and Farads

• Volts and Joules

• Amps and Coulombs

• Watts and Newtons

What is Ohm's Law?

• P = IV

• F = ma

• E = 1/2 mv^2

• V = IR

Why does the graph for a filament bulb curve?

• Resistance decreases with temperature

• Current increases with voltage

• Voltage decreases with current

• Resistance increases with temperature

What is the voltage and frequency of UK mains electricity?

• 110V and 50Hz

• 230V and 60Hz

• 110V and 60Hz

• 230V and 50Hz

What is the purpose of a step-up transformer?

• Decrease voltage

• Decrease current

• Increase voltage

• Increase current

How do you find the density of an irregular object?

• Submerge in water and measure displaced volume

• Measure all sides and multiply

• Use a top pan balance

• Calculate mass divided by height