WorksheetsA Level Physics
Total questions: 60
Worksheet time: 1hrs 17mins
Select the equation for specific charge
specific charge = absolute mass/ absolute charge
specific charge= absolute charge / absolute mass
specific charge = relative charge/ relative mass
specific charge = relative mass/ relative charge
There are ……. Neutrons
79
197
118
276
Isotopes of an element have a different number of...
Protons
Neutrons
Electrons
Mass
What kind of force holds the nucleus together?
Strong Nuclear Force
Weak Nuclear Force
Gravitational Force
Electromagnetic Force
The role of the proton is?
To make an atom what it is
To keep the nucleus stable
To engage in chemistry
To not interact with anything
The existence of the neutrino has been hypothesised...
because we can see it.
to conserve charge number in beta decay.
to conserve energy in beta decay.
to conserve charge in alpha decay.
to conserve energy in beta decay.
What is the ANTI-PARTICLE of Electron
(a)
In pair production, the following happens...
one photon produces a particle-antiparticle pair
two photons produce a particle-antiparticle pair
a particle-antiparticle pair meets and produces a photon
a particle-antiparticle pair meets and produces two photons
Antiparticles have the ______________ as the corresponding particle (select two)
same mass
same charge
opposite mass
opposite charge.
Light acts like waves and we see this (1)
Light acts as particles and we see this when it (2)
1. when it diffracts
2. in the photoelectric effect
1. in the photoelectric effect
2. when it diffracts
The equation for photon energy
E=hf
E=h/f
E=f/h
In beta-plus decay which force exchange particle is involved?
W+
W-
gluon
photon
Which force can Leptons not experience?
Strong nuclear
Weak nuclear
Electromagnetic
Gravitational
Which of the following does not give the correct exchange particle for the process?
Process: gravitational attraction
Exchange particle: W boson
Process: electrostatic repulsion of electrons
Exchange particle: virtual photon
Process: strong interaction
Exchange particle: pion
Process: β− decay
Exchange particle: W boson
Electron capture can be represented by the following equation.
p + e– → X + Y
Which row correctly identifies X and Y?
X: p
Y: K–
X: e–
Y: e+
X: n
Y: Ve
X: n
Y: π0
Which best describes a pion?
A baryon, which is a type of hadron.
A hadron, which is a type of baryon
A meson, which is a type of hadron
A hadron, which is a type of meson.
none of the aboce
What decays into pions?
kaons
all hadrons
protons
baryons
none of the aboce
The light, stable meson is....
pion
kaon
proton
neutron
....have a property called 'strangeness'
protons
pions
kaons
muons
Strangeness
Is always conserved
is always conserved in the strong interaction, but can do anything in the weak interaction
is always conserved in the weak interaction, but can do anything in the strong interaction
is always conserved in the strong interaction, but can change by 1 in the weak interaction.
is always conserved in the weak interaction, but can change by 1 in the strong interaction.
•What type of elementary particles are electrons?
•Quarks
•Leptons
• Photons
Bosons
•What elementary particles are the building blocks for protons and neutrons?
•Quarks
• Leptons
• Photons
• Gluons
•How many quarks make up a proton?
0
1
2
3
4
•What particle is made up of two 'down' quarks and one 'up' quark?
•Atom
• Electron
• Neutron
• Proton
• Tachyon
A metal with a work function of 3.5 eV is exposed to photons with an energy of 3.7 eV. What is the maximum kinetic energy of the emitted photoelectrons?
0.2 eV
0.9 eV
1.1 eV
7.7 eV
de Broglie wavelength (SELECT TWO)
can be calculated for any object with a mass
can be calculated for any object with a velocity
can be calculated for any object with a mass and a velocity.
is most relevant to large objects such as people.
is most relevant for small objects such as electrons.
The area under a force-time graph represents
Impulse
Distance travelled
Work done
Acceleration
The area under a speed-time graph represents
Acceleration
Displacement
Speed
Distance travelled
The area under a velocity-time graph represents
Acceleration
Displacement
Speed
Distance travelled
The gradient of a velocity-time graph represents
Acceleration
Displacement
Speed
Distance travelled
what is inelastic collision?
conserved energy
energy is not conserved
The resolution of this micrometer is .......
0.01mm
0.1mm
0.001mm
0.005mm
This is the speed-time graph for a parachute jump. The skydiver is moving with a terminal velocity at both B and D. At which point is the air resistance the greater?
B because the speed is greater
D because the parachute has opened and increased the surface area
Neither because the air resistance is balanced by weight that doesn't change
A girl is bouncing on a trampoline.Assuming that air resistance is negligible, her acceleration
is zero when she is at maximum height.
is constant when she is in the air
changes direction as she rises and then falls
is maximum just before she lands on the trampoline
Spot the scalars
mass
velocity
displacement
distance
Which of these is not an S.I. base unit?
Ampere
Volt
Second
Mole
Calculate the percentage uncertainty in this measurement: 2.00m
5%
0.5%
1.0%
2%
State the absolute uncertainty in this measurement: 2.00m
0.01
0.1m
1cm
1mm
The S.I. base units for force are
kg m s-2
kg m2 s-2
kg m2 s-1
kg m s-1
The S.I. base units for energy are
kg m s-2
kg m2 s-2
kg m2 s-1
kg m s-1
The vertical component of a force F at angle Φ from the horizontal is given by
FsinΦ
FcosΦ
F/sinΦ
F/cosΦ
The horizontal component of a force F at angle Φ from the horizontal is given by
FsinΦ
FcosΦ
F/sinΦ
F/cosΦ
A seesaw is in equilibrium. What does this mean?
The forces acting on the seesaw are balanced.
The moments acting on the seesaw are balanced
There is no resultant force acting on the seesaw
There is no resultant force or resultant moment acting on the seesaw
Two factors affecting the stability of an object are
The centre of mass and the base
The height of the centre of mass and the base
The centre of mass and the width of the base
The height of the centre of mass and the width of the base
A rocket of mass 10000kg has two identical engines and accelerates upwards at 5ms-2. The thrust from each engine at this point is approximately
150kN
50kN
75kN
25kN
An arrow is fired horizontally at 25ms-1 from a height of 50m. Calculate the time it takes for the arrow to hit the ground.
2.0 seconds
3.2 seconds
5.0 seconds
1250 seconds
A plane flies 100 miles north and then 50 miles east. Its displacement is
150 miles
50 miles
112 miles
87 miles
The prefix f means
1 x 10-6
1 x 10-9
1 x 10-12
1 x 10-15
This is the speed-time graph for a parachute jump. At which point is the resultant force downwards?
A
B
C
D
This is the speed-time graph for a parachute jump. At which point is the resultant force upwards?
A
B
C
D
Definition of force
The product of mass and acceleration
A push, pull, twist or bend
The rate of change of momentum
Work done per metre
The prefix G means
1 x 103
1 x 106
1 x 109
1 x 1012
A mass of 9kg is hung 50cm from the pivot of a beam. The moment it creates is approximately
450 Nm
4500 Nm
4.5 Nm
45 Nm
The resolution of a metre rule
0.001m
0.01m
0.1m
0.0001m
Conditions for suvat equations to be used
Constant acceleration
Changing acceleration
Only for acceleration due to gravity
