Explain how a cyclotron produces a high-energy proton beam
Give this one a try later!
IC1 - There is an alternating p.d./electric field
IC2 - p.d./electric field accelerates protons between dees
IC3 - Magnetic field perpendicular to plane of dees
IC4 - Proton path curved by magnetic field
IC5 - As velocity of protons increases the radius of path in dees increases
IC6 - The time for which a proton is in a dee OR the frequency of
p.d./electric field remains constant
Muons are produced at a height of 10km in the atmosphere. The velocity of the muons
is 0.99c. The average lifetime of muons is normally 2.2 microseconds and yet muons
produced in the supper atmosphere are found in significant numbers at sea level.
Discuss this apparent anomaly.
Give this one a try later!
, IC1 - Uses velocity = distance/time
IC2 - Calculates a time 3x10^-5s
IC3 - Compares with 2.2x10^-6s which is 15 times smaller
IC4 - Identifies relativistic effects as velocity close to c
IC5 - Time dilation means time between events is longer
IC6 - So muon lifetime increases
Explain how an electron is accelerated in a linac.
Give this one a try later!
IC1 - Set of metal tubes in a line
IC2 - Electrons accelerated by electric field/p.d.
IC3 - Acceleration takes place in the gaps between tubes
IC4 - Adjacent tubes connected to opposite terminals of a power supply or
are opposite charge
IC5 - power supply/p.d./electric field is alternating
IC6 - time period/time spent in each tube must be constant so as electrons
travel faster the tubes and gaps must get longer
'The frictional force between an object and a surface is directly proportional to the
mass of an object'. In an experiment a student tapped a 2p coin to it travelled s
metres with initial velocity u. She swapped it with a 1p coin and repeated the process.
She suggested u is directly proportional to the square root of s and is independent of
the mass of the coin. Discuss the validity of this statement.
Give this one a try later!
1 - Use of v^2 = u^2 + 2as
2 - v = 0 so u = root 2as
3 - a is deceleration caused by friction
4 - F = ma where F is friction
5 - If F is proportional to m then a must be constant
Give this one a try later!
IC1 - There is an alternating p.d./electric field
IC2 - p.d./electric field accelerates protons between dees
IC3 - Magnetic field perpendicular to plane of dees
IC4 - Proton path curved by magnetic field
IC5 - As velocity of protons increases the radius of path in dees increases
IC6 - The time for which a proton is in a dee OR the frequency of
p.d./electric field remains constant
Muons are produced at a height of 10km in the atmosphere. The velocity of the muons
is 0.99c. The average lifetime of muons is normally 2.2 microseconds and yet muons
produced in the supper atmosphere are found in significant numbers at sea level.
Discuss this apparent anomaly.
Give this one a try later!
, IC1 - Uses velocity = distance/time
IC2 - Calculates a time 3x10^-5s
IC3 - Compares with 2.2x10^-6s which is 15 times smaller
IC4 - Identifies relativistic effects as velocity close to c
IC5 - Time dilation means time between events is longer
IC6 - So muon lifetime increases
Explain how an electron is accelerated in a linac.
Give this one a try later!
IC1 - Set of metal tubes in a line
IC2 - Electrons accelerated by electric field/p.d.
IC3 - Acceleration takes place in the gaps between tubes
IC4 - Adjacent tubes connected to opposite terminals of a power supply or
are opposite charge
IC5 - power supply/p.d./electric field is alternating
IC6 - time period/time spent in each tube must be constant so as electrons
travel faster the tubes and gaps must get longer
'The frictional force between an object and a surface is directly proportional to the
mass of an object'. In an experiment a student tapped a 2p coin to it travelled s
metres with initial velocity u. She swapped it with a 1p coin and repeated the process.
She suggested u is directly proportional to the square root of s and is independent of
the mass of the coin. Discuss the validity of this statement.
Give this one a try later!
1 - Use of v^2 = u^2 + 2as
2 - v = 0 so u = root 2as
3 - a is deceleration caused by friction
4 - F = ma where F is friction
5 - If F is proportional to m then a must be constant
