Momentum and Impulse - L2

1. What is momentum?

• • (a) The force acting on an object.

• • (b) The product of mass and acceleration.

• • (c) The quantity of motion an object has.

• • (d) The rate of change of velocity.

1.  How do you calculate momentum?

• 1. • (a) Force x Time

• 1. • (b) Mass x Velocity

• • (c) Mass x Acceleration

• • (d) Force / Area

1. An egg weighs 0.057 kg and has a velocity of 26 m s-1. What is its momentum?

• • (a) 0.0022 kg m s-1

• 1. (b) 14.82 kg m s-1

• • (c) 2.2 kg m s-1

• (d) 1.5 kg m s-1

1. What is impulse?

• 1. • (a) The momentum of an object in motion.

• • (b) The product of force and time.

• • (c) The mass of an object in motion.

• • (d) The acceleration of an object.

1. The Impulse-Momentum Theorem states that:

• 1. 
     

     • (a) Impulse is equal to force times time.

• • (b) Impulse is equal to the change in momentum.

• • c) Momentum is equal to mass times velocity.

• • (d) Force is equal to mass times acceleration.

1.  When an egg is thrown against a wall, the impulse involved is:
   

• • (a) large force over a short time.

• 1. 
     

     • (b) small force over a long time.

• • (c) zero.

• • (d) increased.

1. The key difference between throwing an egg against a wall and a sheet is:
   
   

• • (a) The impulse is different.

• • (b)The mass of the egg changes.

• • (c) The momentum is different.

• • (d) The stopping time is different.

1. In parkour's vertical wall run, the runner redirects:

• 1. • (a) Vertical momentum into horizontal momentum.

• • (b) Kinetic energy into potential energy.

• • (c) Horizontal momentum into vertical momentum.

• • (d) Potential energy into kinetic energy.