IMPULSE & MOMENTUM

The momentum of an object depends upon the object's ___________&_____________.

• mass and energy

• mass and veloctiy

• mass and speed

• size and shape

Tags

NGSS.HS-PS2-2

A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The impulse on the ball is ______ N s.

• -2,5

• 45

• 10

• -18

Tags

NGSS.HS-PS2-1

The impulse-momentum theorem states that

• Athe impulse on an object is less than the change in momentum it causes

• the impulse on an object is greater than the change in momentum it causes 

• the impulse on an object is equal to the change in momentum it causes 

• the force on a moving object is equal to the magnitude of the impulse.

. A 40-kilogram mass is moving across a horizontal surface at 5.0 m/s.  What is the magnitude of the net force required to bring the mass to a stop in 8.0 seconds?

• 1 N

• 40 N

• 25 N

• 5 N

Tags

NGSS.HS-PS2-1

A runner has a momentum of 670 kg m/s and is travelling at a velocity of 9 m/s. What is his mass?

• 6030 kg

• 0,0134 kg

• 74,4 kg

• 80 kg

Tags

NGSS.HS-PS2-1

A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s.

Calculate the impulse on the ball.

• 1 N·s

• 6 N·s

• None of these

• 66 N·s

Tags

NGSS.HS-PS2-1

he difference between a car hitting a wall vs. a car hitting a hay stack is

• the change in momentum of the car hitting the wall is greater

• the force on the car hitting the hay stack is greater

• the Impulse on the car hitting the wall is greater

• the collision time of the car hitting the hay stack is greater

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

When the speed of an object is doubled, its momentum...

• remains unchanged in accord with the conservation of momentum.

• quadruples.

• decreases.

• doubles.

Tags

NGSS.HS-PS2-2

If two objects have the same mass, then the faster moving object has ____________ momentum.

• less

• the same

• more 

• None of these

Tags

NGSS.HS-PS2-2

Which takes more force  to catch, a bowling ball or a ping pong ball?

• bowling ball because it has more momentum

• bowling ball because it has less momentum

• both require the same amount of force when catching

• ping pong ball because it has more momentum

Tags

NGSS.HS-PS2-2