WorksheetsMCSHS Yr 9 Physics Review 2
Total questions: 25
Worksheet time: 21mins
What type of heat transfer is represented in this diagram?
Conduction
Convection
Radiation
Reflection
If resistor R6 fails, Which other resistors will also not work?
R 1
R 7
All of the resistors will fail
None of the other resistors will fail
If resistors R 3 and R 4 fail, which other resistors will not work?
R 1
R 2
R 5
R 7
Which statement is most accurate about the graph?
As the current through the light bulb increases, the voltage goes down.
The light bulb's resistance matches Ohm's law.
Resistance in the light bulb rises as the voltage increases.
Resistance is continually rising as current increases.
The resistance between 2 and 4 volts is closest to....
10 Ohms
50 Ohms
100 Ohms
200 Ohms
The resistance between 10 and 12 volts is closest to ...
10 Ohms
50 Ohms
100 Ohms
150 Ohms
Which resistor has the highest resistance?
Red
Blue
Black
Calculate the resistance at 5.10 volts.
(Remember 1 Amp = 1000 mA)
55.3 Ohms
56.4 Ohms
17.7 Ohms
18.1 Ohm
What is the purpose of this experiment?
To find which can is the best water heater.
To determine the rate at which different surfaces radiate heat.
To determine which surface finish achieves the greatest heat absorption.
To show that dull surfaces are the best conductors of thermal energy.
Which hypothesis is most likely correct for this experiment?
Metal is a good conductor of heat.
The darker the surface colour, the greater the heat absorption.
The sharper the angle of the roof, the greater the temperature increase in the ceiling.
Faster cooling occurs with darker roof colours.
The purpose of this experiment is to...
determine which type of metal keeps the water the hottest for the longest time.
determine which type of metal heats up water the fastest.
determine which drawing pin will drop off first.
determine which type of metal conducts heat the fastest.
If the rectangular block was a shiny silver metal, which percentages would decrease?
A
B
C
None, they would all stay the same.
If the rectangular block was a black translucent glass, what would be most likely to increase?
Reflection
Absorption
Transmission
None, they would all remain the same.
Given these results from an experiment, what is the independent variable?
Voltage
Current
Resistance
Ohm's law
Given these result form an experiment, what was the dependent variable?
Voltage
Current
Resistance
Ohm's law
Which statement is correct for this data?
Current is the independent variable and resistance is the dependent variable.
Voltage is the independent variable and current is the independent variable.
Resistance is the independent variable and voltage is the dependent variable.
Current is a controlled variable and resistance is the dependent variable.
Which statement is correct?
Resistance increases as the current decreases.
The voltage is the dependent variable and current is the independent variable.
The resistors used are all Ohmic resistors.
This is not a fair test as more than one variable changes.
This diagram demonstrates...
that fish appear closer to the 'normal' than they really are.
that light refracts towards the 'normal' as it enters water from air.
that light perpendicular to the 'normal' is not refracted.
that fish cannot be caught when they are further from the 'normal'.
The greater the curve of a convex lens, the ....
longer the focal length.
shorter the focal length.
sharper the image formed.
smaller the focal point.
This figure indicates that ...
increased resistance reduces the voltage if the current remains the same.
increased voltage leads to decreased current if the resistance remains the same..
increased resistance leads to decreased current if voltage remains the same.
I don't know what it means! I'm confused.
Predict the resistance at 20 o C.
25 kilo-Ohms
15 kilo-Ohms
10 kilo-Ohms
8 kilo-Ohms
The current trough 4 objects was test at room temperature at various voltages. What was the dependent variable?
Object
Temperature
Voltage
Current
From this data, what is the approximate resistance of object A.
20 Ohms
15 Ohms
10 Ohms
5 Ohms
Which object indicates a deceasing resistance as the voltage rises?
A
B
C
D
How is resistance calculated from this data?
Voltage x Current
Voltage ÷ Current
Current ÷ Voltage
Can't be done from this data.
