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Current and Charge OALH
By Kieran Amery
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Last updated about 5 years ago
39 questions
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Do Now:
Question 1
1.
Draw the circuit symbol for an ammeter.
visibility
View drawing
Question 2
2.
Draw the circuit symbol for a variable resistor.
visibility
View drawing
Question 3
3.
Define half-life
Half the time taken for the number of undecayed nuclei to vanish OR half the time taken for the activity to completley stop.
The time taken for the number of undecayed nuclei to halve OR the time taken for the activity to fall to half its original value.
The time taken for the number of nuclei in a smaple to completely decay OR the time taken for the activity to completely stop.
Question 4
4.
State which graph you would draw if your independent and dependent data was continuous.
line graph
pie chart
bar graph
Question 5
5.
Find the anomalous result and calculate the mean:
1.2 1.1 0.9 1.8 1.3 1.1
Question 6
6.
Challenge:
Calculate the half-life of a sample if its activity falls from 8000 counts per second to 500 counts per second after 10 minutes.
Checkpoint Questions
Question 7
7.
What is the symbold for current?
c
I
t
Question 8
8.
What makes the current large?
more charge flowing and how quickly they flow
higher voltage and more power from the cell
longer wires in the circuit
Question 9
9.
What are the units for charge flow?
electrons
velocity
coulombs
Question 10
10.
What is the symbol for time?
c
I
t
Key Knowledge LCWC
Question 11
11.
What is electic current made up of?
Question 12
12.
What determines how large the electrical current is?
Question 13
13.
Define current
Question 14
14.
What is the equation linking charge flow Q, current A and time t?
Question 15
15.
What are the units for charge flow Q?
Question 16
16.
What are the units for current I?
Question 17
17.
What are the units for time t?
Question 18
18.
What is electic current made up of?
Question 19
19.
What determines how large the electrical current is?
Question 20
20.
Define current
Question 21
21.
What is the equation linking charge flow Q, current A and time t?
Question 22
22.
What are the units for charge flow Q?
Question 23
23.
What are the units for current I?
Question 24
24.
What are the units for time t?
Recall Quiz:
Question 25
25.
What is the definition of current?
The flow of voltage
Rate of charge flow
The speed of energy
Question 26
26.
What two things determine how large the current is?
How much charge is flowing
The power from the cell
The reading on the ammeter
How long it takes the charge to flow
Question 27
27.
State the equation linking current, charge flow and time.
Question 28
28.
Name the units for Q, I and t
Question 29
29.
What makes up electric current?
Flowing electrical charge.
Energy moving along the wires
Stationary electrical charge
I do
Question 30
30.
Calculate the current in a circuit with 120C of charge flowing every minute (60s).
We do:
Question 31
31.
Calculate the charge in a circuit with 5A of current every 10s
You do:
Question 32
32.
Calculate the current when 500C of charge flows every two minutes.
Question 33
33.
Calculate the current when 480C of charge flows every 1.5 mins
Plenary
Question 34
34.
Which quantity has the symbol I?
Question 35
35.
Which quantity is measured in Coulombs (C)?
Question 36
36.
What is the definition of current?
Question 37
37.
0.33A is telling you about which quantity?
Question 38
38.
44 C is telling you about which quantity?
Question 39
39.
What are the units used for time?