A cell is necessary to push ............. around a complete circuit. ( a battery consists of two or more cells)
electrons
1 of 40
an ammeter is used to measure ........
electric current
2 of 40
a fixed resistor linits one ....... in a circuit
current
3 of 40
a volt meter is used to measure ........... (voltage)
potential difference
4 of 40
length is measured in cm, m, mm; what are they measured with?
ruler
5 of 40
time is measured in secs, mins, hours; what is used to measure time?
clock
6 of 40
current is measured in amperes (amps); what is used to measure amperes?
ammeter
7 of 40
potential difference is measured in volts (v); what s used to measure volts?
voltmeter
8 of 40
resistance is measured in ..... ?
ohms
9 of 40
charge is measured in ... ?
coulombs (c)
10 of 40
an electrical current is...........
the rate of flow of charge
11 of 40
charge (coulombs) =
current (amperes) x time (seconds)
12 of 40
energy transferred (joules) =
potential difference (volts) x charge flows (coulombs)
13 of 40
electrical power supplied (watts) =
current (amperes) x potential difference (volts)
14 of 40
what is static electricity?
charge held by an insulator or an insulated conductor
15 of 40
the nucleus contains .....
protons and neutrons
16 of 40
the electrons are ....
negatively charged
17 of 40
equation for 'rate of flow' =
quantity / time taken
18 of 40
current (coulobs) (c) =
charge / time or I=Q/T
19 of 40
the time taken for 80 C of charge to flow through a wire when the current in the wire is 5.0 A. what equation should you do?
80 / 5 =
20 of 40
the charge flow in 60 seconds in a wire when the current in the wire is 3.0 A. what is the equation you do?
3 x 60 =
21 of 40
what is potential difference?
what makes a current flow in a circuit
22 of 40
what is the equation to work out potential difference?
V = W / Q
23 of 40
'w' stands for .....
work done
24 of 40
'q' stands for ......
charge
25 of 40
q is measured in .....
coulombs (c)
26 of 40
v is measured in .....
volts
27 of 40
work done or energy trnsferred is measured in ......
Joules (j)
28 of 40
the resistance is the opposition to the ....... in the circuit
current
29 of 40
resistance is defined as .....
V = I X R
30 of 40
potential difference is =
current x resistance
31 of 40
resistance is measured in .....
ohms
32 of 40
if there is less gradient (on a graph) there is ......
more resistance
33 of 40
Circuit problems: what is the resistance of the resistor? if there is 6v and 2a
3 ohms
34 of 40
parallwl circuit problems:there are two cells with 1.5v, what is the total potential difference?
3v
35 of 40
what is velocity?
how fast something is moving and what direction
36 of 40
sped is calculated by ......
s = d / t
37 of 40
what is acceleration?
the rate of change of velocity
38 of 40
acceleration (m/s to the power 2) =
final speed (m/s) - initial speed (m/s) / time taken for change
39 of 40
a lump of plasticine hits the ground moving at 10m/s. after 0.1s it is stationary. what is the equation you use to work out the acceleration of the plasticine?
0 - 10 / 0.1
40 of 40
Other cards in this set
Card 2
Front
an ammeter is used to measure ........
Back
electric current
Card 3
Front
a fixed resistor linits one ....... in a circuit
Back
Card 4
Front
a volt meter is used to measure ........... (voltage)
Back
Card 5
Front
length is measured in cm, m, mm; what are they measured with?
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