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WorksheetsPHS Edexcel Combined Science Physics Higher Nov Mock
Total questions: 39
Worksheet time: 1hrs 18mins
Explain how the acceleration of the athlete changes between 2 s and 6 s, using information from the graph in Figure 1.
The gradient of the graph decreases which shows that acceleration has increased.
The gradient of the graph increases which shows that acceleration has increased.
The gradient of the graph decreases which shows that acceleration has decreased.
The gradient of the graph increases which shows that acceleration has decreased.
In Figure 1, what does the area between the curve and the time axis show?
acceleration
distance
force
speed
The number ‘53’ in Figure 3 is the
atomic number
gamma number
mass number
nucleon number
Iodine-131 has a half-life of 8 days. Explain what is meant by “half-life”.
Half of the time it takes for all radioactivity from a sample to stop
The time it takes for the activity of a sample to fall to half its value
The time it takes for half the number of unstable nuclei in a sample to decay
The time it takes for half an atom to decay.
Iodine-131 has a half-life of 8 days. A sample of radioactive material contains 10 g of iodine-131. Calculate the mass of iodine-131 remaining after 24 days.
5g
0.625g
1.25g
2.5g
Devise a plan to test whether a 5 mm thickness of aluminium is enough to absorb
all the β– (beta minus) particles from this source.
Measure the count rate from source without AND with the sheet of aluminium in between.
Measure the background count rate and then measure the count rate from source without AND with the sheet of aluminium in between.
Measure the background count rate and then measure the count rate from the source with the sheet of aluminium in between.
Measure the background count rate without AND with the sheet of aluminium in between.
Describe, in terms of air particles, how a sound wave travels through air.
Particles of air vibrate at right angles to the direction the wave/energy travels.
Particles of air vibrate in the opposite direction as the wave/energy travels.
Particles of air vibrate in the same direction as the wave/energy travels.
Particles of air vibrate in random directions.
Which of these could give a measure of the loudness of a sound?
amplitude
frequency
wavelength
wave speed
Two students stand 100 m from a large, smooth wall. Student M claps his hands repeatedly. Student M makes sure he claps at the same time that he hears the echo of his previous clap. Describe how student N can measure the time for the sound to travel 200 m.
Student N can measure the time it takes for 1 clap.
Student N can measure the time between 2 claps.
Student N can measure the time it takes for 10 claps and then divide that by 10.
Student N can measure how long it takes for student M to get tired of clapping his hands
Suggest two methods of detecting infrared waves.
Remote control
Thermometer
pH meter
Thermal imaging camera
State why ultraviolet waves are potentially more dangerous to humans than infrared waves.
UV have a lower frequency
UV have a longer wavelength
UV have a higher frequency
UV have a bigger amplitude
How do you use wave speed and wavelength to calculate frequency?
wave speed / wavelength
wave speed x wavelength
wavelength / wave speed
wavelength - wave speed
The ball is projected up the slope from P. Q is the highest point the ball reaches before it rolls back to P. Which statement is correct? When the ball returns to P,
the ball has less gravitational potential energy than it had at the start
the ball has more gravitational potential energy than it had at the start
the total energy of the whole system has increased
the total energy of the whole system stays the same
How do you calculate kinetic energy?
KE = m / v
KE = m x v2
KE = 0.1 x m x v
KE = 0.5 x m x v2
Explain how energy is wasted when there is friction.
Some KE is absorbed by heating from the surroundings
Some KE is transferred from the surroundings
Some KE is transferred by heating the surroundings
Some thermal energy is absorbed from the surroundings
What is Newton's third Law?
A moving object continues to move at the same velocity unless a resultant force acts on it
Every action has en qual and opposite reaction
A stationary object stays stationary unless a resutant force acts on it
resultant force = mass × acceleration
What is the wavelength of this wave?
30 cm
12 cm
5 cm
-5 cm
Which colour of visible light has the longest wavelength?
Blue
Yellow
Red
Green
A water wave has a wavelength of 2 m and a frequency of 2 Hz. How can you calculate wave speed?
v = f x λ
v = f/λ
velocity = frequency x wavelength
2 x 2 = 4m/s
Describe the motion of a transverse wave.
The vibrations are at right angles to the direction the wave travels.
Vibrations are in the opposite direction as the wave/energy travels.
The vibrations are in the same direction as the wave/energy travels.
There are random vibrations in all directions.
State the name of an instrument that can be used to measure radioactivity.
Thermometer
pH meter
Geiger- Muller tube.
Radiometer
Which of the following are sources of background radiation?
Cosmic rays
Rocks
Nuclear Power Stations
Food
How many protons does carbon have?
13
6
12
8
How many electrons does carbon have?
13
6
12
8
How do you calculate the number of neutrons in an atom?
Mass number - Atomic number
Atomic number - Mass number
Mass number + Atomic number
Mass number / Atomic number
Carbon-14 is radioactive and has a half-life of 6 000 years.
The number of radioactive carbon-14 atoms in a very old piece of material is found to have decreased from 1 000 to 125. Determine the age of the piece of material.
6 000
12 000
18 000
24 000
Explain what happens during β - (beta minus) decay.
A neutron fires out a fast moving electron and becomes a proton
The mass number stays the same
The proton number increases by 1
The mass number increases by 1.
How do you calculate gravitational potential energy?
GPE = m x g x h
GPE = m x g / h
GPE = m / (g x h)
GPE = m x g x h2
To work out the average speed of an object, which of the following would you carry out?
Measure the distance with a measuring tape
Measure the time with a clock
Measure the time with a stopwatch
Use s = x / t or s = d / t
What is the speed of sound in air?
330 000m/s
330 m/s
33 m/s
330 000 000m/s
If you are measuring the speed of sound in the school field. What is a sensible distance to use?
3.3 m
33 m
330 m
3300 m
How does a sound wave pass through a solid?
Particles at one end vibrate less causing neighbouring particles to vibrate less
Particles move from one end to the other
Particles at one end vibrate more causing neighbouring particles to vibrate more
Particles stop moving
What is this called?
reflection
refraction
diffraction
deflection
Give this number 149.1092 to 3 significant figures
150
149
149.109
A force that keeps an object moving in a circular path is known as the
balancing force
centripetal force
reaction force
resistance force
What is the difference between speed and velocity?
Speed is how fast an object is moving, whereas velocity is how slow it is moving
Speed is a scalar quantity, velocity is a vector quantity
Speed is how fast an object is moving in a given direction, whereas velocity is how fast an object is moving
Speed is how fast an object is moving, whereas velocity is how fast it is moving in a given direction
How do you calculate acceleration?
a = (v + u) / t
a = (v - u) x t
a = (v - u) / t
a = (v + u) x t
Why is UV light harmful to the eyes?
It can cause cancer
It changes the colour of your eyes
It makes your eyes glow in the dark
It can cause cataracts
What is the speed of all electromagnetic waves in vacuum?
3 x 10 6 m/s
3 x 108 m/s
3 x 109 m/s
3 x 107 m/s
