PHS Edexcel Combined Science Higher Physics Paper 2 Quiz 1

Which of these is the correct equation for calculating the kinetic energy of the car?

• KE = mv

• KE = mv²

• KE = 1/2mv²

• KE = 2mv²

Which of these is the equation relating change in gravitational potential energy, mass, gravitational field strength and change in vertical height?

• change in GPE = mass x gravitational field strength x change in vertical height

• change in GPE = mass x gravitational field strength / change in vertical height

• change in GPE = mass x change in vertical height / gravitational field strength

• change in GPE = gravitational field strength / (mass x change in vertical height)

The mass of the car is 580 kg. The car gains 39 000 J of gravitational potential energy as it climbs from P to Q. Calculate the height, h, shown in Figure 1. (gravitational field strength, g = 10N/kg).

• 6.7m

• 672m

• 0.15m

• 15m

Give three modifications the student should make to the circuit so that the circuit works correctly.

• Connect the voltmeter in parallel, reverse the thermistor, reverse one of the cells

• Connect the ammeter in series, connect the voltmeter in parallel, reverse of one the cells

• Connect the ammeter in series, connect the voltmeter in parallel, reverse the thermistor

• Connect the ammeter in series, connect the voltmeter in parallel, reverse both of the cells

Give one reason for using the water bath.

• A large volume of water would give a steady temperature rise

• To prevent the thermistor from over heating

• A large volume of water would take less time to heat

• To prevent the thermometer from over heating

What is the average length of the spring?

• 20.41

• 20.13

• 20.14

• 20.31

Truck Y is removed from the train, turned through 180^o and is then replaced between truck X and Z. How does this affect the train?

• Y attracts both X and Z as before

• Y still attracts X but now repels Z

• Y still attracts Z but now repels X

• Y now repels both X and Z

Which of these correctly shows the field inside the truck?

• 
• 
• 
• 

Complete the blanks: Frictional forces ................. as more truck are added, hence, in order to keep constant speed, the student must increase the force she applies to ..........

• increase; Y

• increase; Z

• decrease; Y

• decrease; Z

Calculate the total charge that flows while the battery is being charged.

• 5.16

• 0.00000516

• 0.193

• 190 000