Electrical Power
What colour is the Grinch?
Green
How many reindeer pull Santa's sleigh?
8
Name one use of an electromagnet?
Doorbell, a crane for lifting metal
What will increase the strength of the magnetic field around a current?
Increasing the current
What flavour are candycanes?
Peppermint
How much energy is transferred when the potential difference is 120 V and the charge is 2 C?
E = QV
240 J
The magnetic field of a bar magnet is strongest...
Where the field lines are closest - at either end of the bar magnet
Name of the main character in the movie 'Elf'
Buddy
Which rule do we use to predict the direction of movement?
Fleming's Left Hand Rule
What is another name for electromagnetic induction?
The generator effect
What is the equation that links current, power and voltage?
P = IV
power = current x voltage
What is an induced magnet?
An object that becomes a magnet when placed in a magnetic field
What is a solenoid?
A coil of wire with a magnetic field similar to that of a bar magnet
What is Scrooge's first name?
Ebenezer
How is contact between the coil and the circuit maintained in an alternator?
Slip-rings and brushes allow continuous connection
On the first day of Christmas my true love gave to me...
A partridge in a pear tree
Which reindeer's name starts with a 'B'?
Blitzen
State the 4 factors affecting the strength of an electromagnet
Number of turns of wire, current, distance from the coils, adding an iron core
In a DC motor, what is the function of the split-ring commutator?
It reverses the current direction every half turn, to keep the motor spinning in the same direction all the time
What is the name of the main character in 'Home Alone'?
Kevin McCallister