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Worksheets10Y1 Physics Quiz
Total questions: 56
Worksheet time: 28mins
Energy is measured in.....
kilograms
metres per second
Joules
metres
Energy cannot be created or destroyed, it can only be _________ between the stores
removed
dissipated
transferred
stored
On a rollercoaster, the gravitational potential is at its highest/lowest when it reaches the top of the track
highest
lowest
What is the equation to work out kinetic energy?
mass x velocity
0.5 x mass x velocity
0.5 x mass x velocity3
0.5 x mass x velocity2
The mass of a car is 2500kg. It travels at 20m/s. Calculate the kinetic energy.
500,000J
600,000J
400,000J
700,000J
What is the equation to work out gravitational potential energy?
mass x gravitational field strength x height
0.5 x mass x velocity2
mass x height
height x gravitational field strength
How much energy is needed to heat 2kg of water from 10oC to 100oc. The specific heat capacity of the water is 4200J/kg oC. Use the equation sheet to calculate the change in thermal energy.
753,000J
754,000J
755,000J
756,000J
Power = ______________ ÷ time
mass
height
energy
work done
What is the unit of measurement for Power?
metres
kilograms
Watts
Joules
Insulation reduces the rate of energy transfer by heating. What methods below do we use in our homes to reduce wasted energy?
double glazed windows
log burners
thick carpets
cavity wall insulation
Lubricating certain machines or bikes reduces which type of force?
air resistance
tension
magnetic
friction
Which of these are non renewable energy resources?
coal, oil, gas, wind
coal, oil, gas, tidal
coal, oil, gas, nuclear
coal, oil, gas, solar
A student used some everyday items to investigate static electricity.
Figure 1 shows a flexible plastic strip being rubbed with a cloth.
Complete the sentence (with 1 correct word).
Rubbing the plastic strip with the cloth causes the strip to become negatively charged because (a) move from the cloth onto the plastic strip.
The student hung the negative plastic strip over a wooden rod.
The ends of the strip moved away from each other.
Figure 2 shows the position of the plastic strip on the wooden rod.
What conclusions should the student make about the forces acting on the two halves of the plastic strip? (select as many as apply)
The electrostatic forces are uneven depending on mass.
The forces are even magnitude.
The forces act in opposite directions.
The forces act diagonally upwards.
A lamp is connected to a 24 V power supply. The current through the lamp is 1.5 A.
Calculate the power of the lamp. (Answer to 2 Sig Fig with unit symbol).
(a)
LED lamps are much more efficient than filament lamps.
What does this statement mean?
LED lamps have a similar power output to filament lamps.
LED lamps waste a smaller proportion of the input energy than filament lamps.
LED lamps have a higher power input than filament lamps.
LED lamps waste a larger proportion of the input energy than filament lamps.
The diagram shows a temperature sensing circuit used to control a heating system in a house.
What quantity does the ammeter measure? (One correct word only needed)
(a)
The battery in the drone can store 97.5 kJ of energy.
When the drone is hovering, the power output of the battery is 65.0 W
Calculate the time in seconds for which the drone can hover. (2 sig fig answer with no units).
(a)
A student set up the electrical circuit shown in the figure.
The ammeter displays a reading of 0.10 A.
Calculate the potential difference (in Volts) across the 45 Ω resistor. (2 sig fig, no units needed).
(a)
Increasing the temperature of a gas increases the store of which energy type of the particles?
Potential Energy
Chemical Energy
Kinetic Energy
Pressure
The amount of energy to raise the temperature of a 1kg of a given substance by 1ºC
Specific Latent Heat of Fusion
Specific Latent Heat of Vapourisation
Specific Heat Capacity
Activation Energy
Latent Heat of Fusion: The amount of energy required to change the state of 1kg a substance from solid to liquid at fixed _____________
Quantity
Heat Energy
Temperature
Pressure
What is the graph called?
Melting and Boiling graph
Temperature Graph
Heating Curve of a substance
Graph of Temperature and heating up
At which point does the substance finish boiling
B
C
E
F
D
Which is true of liquids?
Particles arranged in an ordered manner
Particles are not touching one another.
Particles are quite closely packed
Particles can vibrate but not move around
Which of these substances has its liquid form more dense than its solid form?
oxygen
water
mercury
lava
A cube of metal has side 2 cm. It weighs 10g. Find its density.
5 g / cm3
20 g / cm3
0.2 g / cm3
1.25 g / cm3
Which of these best describes the plum pudding model of an atom?
A nucleus in the middle with electrons in shells around the outside
A positive middle with a negative outer layer
A positively charged atom with lots of electrons inside
A mess
What makes something radioactive?
elements with an atomic number above 81
an unstable nucleus
contaminated sewage
It decays over time
If the mass number of an atom is 24 and its atomic number is 12, it has
12 protons.
12 neutrons.
12 electrons.
Which of these particles are the nucleus of a helium atom
alpha particles
beta particles
gamma rays
alpha decay
The least penetrating radioactive emission is
alpha
beta
gamma
Which particles are negatively charged
alpha
beta
gamma
Which radiation carries no particles as it is just a wave of energy
alpha
beta
gamma
The amount of time it takes for half of the nuclei in a sample to undergo radioactive decay is
nuclear stability
nuclear instability
beta decay
half life
What will the values of x and y be?
x=194, y =83
x=194, y =84
x=194, y =85
I don't know. I should probably study this stuff more before the test.
What is the difference between vector and scalar measurements?
Scalar is measured in Newtons, vector is measured in Grams
Scalar is magnitude, vector is direction
Scalar is magnitude, vector is magnitude and direction
Scalar is a bigger measurement than vector
What is the unit of force?
Newton (n)
Newton (N)
Neutron (N)
True or False?
Resultant force is the difference between two opposite forces acting on an object or the total of forces acting in the same direction?
True
False
The arrows in this diagram represent the sizes of forces acting on a stationary tennis ball. What will happen to the tennis ball?
It will stay still
It will start to move upwards
It will start to move downwards
According to Newton's first law of motion, unless a resultant force acting on an object is above zero, a stationary object will...
Stay stationary
Move north only
Move south only
Will move slowly
Which equation best describes Newton's 2nd law of motion?
A = Fm
m-Fa
F=ma
F=m/a
According the Newton's 3rd law of motion 'every action has an equal and opposite reaction'.
This means...
When two forces act on an object they are always the same
When two objects interact, they exert equal and opposite forces on each other
Whatever you do to someone else they can do to you
What is being done in this image?
Origami
Folding different types of filter paper
Finding the centre of mass
Making hats
What is the weighted string called used to find the centre of mass of an irregular shape?
Plumb line
Peach line
Pear line
Prune line
