Momentum + Impulse

The ability to change the motion of the moving object depends primarily on these two factors.

• Mass of the object

• Velocity of the object

• Size of the object

• Shape of the object

Tags

NGSS.HS-PS2-1

The product of the mass and velocity of an object is called

• Momentum

• Weight

• Impulse

• Theta

Tags

NGSS.HS-PS2-2

The equation seen here

• Momentum = Mass x Velocity

• Power = Momentum x Velocity

• Propulsion = Movement x Velocity

• Impulse = Mass x Force

Tags

NGSS.HS-PS2-2

The momentum of a 1.00 kg ball moving with a velocity of 15.0 m/s will be

• 15 kg m/s

• 1.5 kg m/s

• 150 kg m/s

• 1500 kg m/s

Tags

NGSS.HS-PS2-2

If we wish to change the momentum of an object in motion, we must

• apply a force.

• give the object inertia.

• change the shape of the object.

• instantly stop the object.

Tags

NGSS.HS-PS2-1

Applying a force to an object can change its momentum. The product of force x time (which the force acts) is called:

• Impulse

• Impedo

• momentum

• Theta

Here we can see the impulse equation. We should read this as:

• Impulse = change in momentum

• Momentum = change in impulse

• Feet = triangle m-vee

• Force = Impulse

Tags

NGSS.HS-PS2-2

Clearly it is safer to jump from a ladder onto a mound of hay rather than onto bare concrete. Which explanation is best as to why this is so.

• The impulse occurs over a longer time period but with a lower force.

• Less momentum is lost when jumping onto hay.

• There is less impulse when jumping onto hay.

• There is a greater change of momentum when jumping onto concrete.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

If we apply an impulse to an object

• it will always speed up.

• it will always slow down.

• it will experience a change in momentum.

• the mass of the object will change.

Tags

NGSS.HS-PS2-2

A 3.5 kg and a 7.0 kg bowling ball are each dropped from a high tower. Which experiences the greatest impulse when striking the ground beneath the tower?

• The 7.0 kg bowling experiences greater impulse.

• The 3.5 kg bowling ball experiences the greater impulse.

• Both balls experience the same impulse because their velocities are equal.

• Neither ball experiences an impulse when striking the ground.

Tags

NGSS.MS-PS2-4