General Paper
6 Worksheet (AS)
1
v A body moving with speed v collides v 2 elastically with another body travelling in v the opposite direction with speed . 2 Which row in the table below correctly gives the relative velocity of approach and the relative velocity of separation of the two bodies? [1]
Relative velocity of approach A B C D
Relative velocity of separation
v 2 v 2 3v 2 3v 2
v 2 3v 2 v 2 3v 2
2
A body of mass m travels with a velocity 3v and collides with another particle of mass 2m which is initially stationary. After the collision, the two particles move with the same velocity. Which row in the table gives the final velocity of the two particles and the loss in kinetic energy during the collision? [1]
A B C D Final velocity v v 1.5 v 1.5 v Loss in kinetic energy mv2 3mv2 mv2 3mv2
3
In an inelastic collision which quantities are conserved?
A B C D
[1]
total kinetic energy and total momentum but not total energy total kinetic energy and total energy but not total momentum total momentum and total energy but not total kinetic energy total kinetic energy, total momentum and total energy [1]
4
A particle has momentum p1 at time t1 and momentum p2 at time t2. What is the average force acting on the particle between t1 and t2?
⎛ A ⎜ ⎜ ⎝ ⎛ B ⎜ ⎜ ⎝
p1 + p2 ⎞ ⎟ t1 + t2 ⎟ ⎠ p2 − p1 ⎞ ⎟ t 2 − t1 ⎟ ⎠
⎛p p ⎞ C 0.5 ⎜ 1 + 2 ⎟ ⎜t ⎟ ⎝ 1 t2 ⎠ ⎛p p ⎞ D 0.5 ⎜ 2 + 1 ⎟ ⎜t t1 ⎟ ⎝ 2 ⎠
AS and A Level Physics
Original material © Cambridge University Press 2010
1
6 Worksheet (AS)
5
What is a correct statement of the principle of conservation of momentum?
A B C D
[1]
in an inelastic collision the total kinetic energy and momentum are constant in any collision the total momentum of an isolated system is constant in any isolated system the force on a body equals the rate of change of momentum momentum is constant when mass and velocity are constant
6
A bumper-car collides at right angles with a metal barrier and
1
v A body moving with speed v collides v 2 elastically with another body travelling in v the opposite direction with speed . 2 Which row in the table below correctly gives the relative velocity of approach and the relative velocity of separation of the two bodies? [1]
Relative velocity of approach A B C D
Relative velocity of separation
v 2 v 2 3v 2 3v 2
v 2 3v 2 v 2 3v 2
2
A body of mass m travels with a velocity 3v and collides with another particle of mass 2m which is initially stationary. After the collision, the two particles move with the same velocity. Which row in the table gives the final velocity of the two particles and the loss in kinetic energy during the collision? [1]
A B C D Final velocity v v 1.5 v 1.5 v Loss in kinetic energy mv2 3mv2 mv2 3mv2
3
In an inelastic collision which quantities are conserved?
A B C D
[1]
total kinetic energy and total momentum but not total energy total kinetic energy and total energy but not total momentum total momentum and total energy but not total kinetic energy total kinetic energy, total momentum and total energy [1]
4
A particle has momentum p1 at time t1 and momentum p2 at time t2. What is the average force acting on the particle between t1 and t2?
⎛ A ⎜ ⎜ ⎝ ⎛ B ⎜ ⎜ ⎝
p1 + p2 ⎞ ⎟ t1 + t2 ⎟ ⎠ p2 − p1 ⎞ ⎟ t 2 − t1 ⎟ ⎠
⎛p p ⎞ C 0.5 ⎜ 1 + 2 ⎟ ⎜t ⎟ ⎝ 1 t2 ⎠ ⎛p p ⎞ D 0.5 ⎜ 2 + 1 ⎟ ⎜t t1 ⎟ ⎝ 2 ⎠
AS and A Level Physics
Original material © Cambridge University Press 2010
1
6 Worksheet (AS)
5
What is a correct statement of the principle of conservation of momentum?
A B C D
[1]
in an inelastic collision the total kinetic energy and momentum are constant in any collision the total momentum of an isolated system is constant in any isolated system the force on a body equals the rate of change of momentum momentum is constant when mass and velocity are constant
6
A bumper-car collides at right angles with a metal barrier and