WorksheetsP1 Electricity OCR GCSE
Total questions: 18
Worksheet time: 16mins
An atom contains (tick all that apply)
electrons
protons
positrons
neutrons
gravitons
which subatomic particles are contained in the nucleus (choose all that apply)
electrons
protons
positrons
neutrons
which subatomic particles are NOT bound in the nucleus and can move (tick all that apply)
protons
electrons
neutrons
positrons
When a balloon is rubbed against a jumper, what are rubbed on or off the balloon? (tick all that apply)
protons
electrons
atoms
neutrons
positrons
What is the charge on an electron?
positive
negative
no charge (neutral)
What is the charge on a proton?
positive
negative
neutral (no charge)
An acetate rod is rubbed with a cloth and become positively charged. Which of these statements is correct? (tick all that apply)
electrons are rubbed off the rod by friction
protons are rubbed onto the rod by friction
electrons are created by the heat of the cloth rubbing the rod
positrons are rubbed off the cloth onto the rod by friction
the cloth will become negatively charged
If a metal rod is rubbed with a cloth it does not become charged. Why?
Metal is a conductor, so it gets hot instead
Metal is a conductor, so electrons will move from other parts off the rod to replace any that are rubbed off
Metal becomes shiny instead
Metal is a conductor, so makes music instead
Which of these are insulators or insulating materials? (tick all that apply)
rubber
cloth
plastic
metal
glass
Electric current is the flow of.......
protons
electrons
electricity
atoms
In an electric circuit, conventional current flows from the battery around the circuit from...
the positive (+) side of the battery to the negative (-) side
the negative (-) side of the battery to the positive (+) side
Charge is measured in...
Amperes
Coulombs
Ohms
Volts
In equations, charge is represented by the letter...
C
Q
I
t
In equations, current is represented by the letter...
C
Q
I
t
An electron has a charge of -1.6 x 10-19C.
How many electrons are in 1 C?
( Hint: Divide 1 C by the charge on 1 electron to give you the number of electrons)
Current = Charge per time. If 90 C of charge flows past a point in 60 seconds, what is the current?
5400 A
5400 C
1.5 A
0.67 A
What is the charge flowing if a current of 13A flows for 10 seconds?
130 C
130 A
1.3 C
1.3 A
An electrostatic paint sprayer is about to be used to paint a metal object.
When the paint particles leave the sprayer, they are negatively charged.
Which of these statements are true?
The paint particles stick to each other and drip in large blobs from the nozzle
The paint particles repel each other to give a more even coat
The paint particles are attracted to the car so there is less waste
The paint particles get inhaled by the person spraying the car
