Forces and interactions review

Match the vocab word and the correct definition.

• quanitity that has magnitude & direction

• force

• area that deforms during collision

• crumple zone

• push or pull, accelerates the object

• vector

• p=mv

• momentum

• 2+ things exerting force on each other

• collision

Tags

NGSS.MS-PS2-1

A 5 kg object is moving at 5 m/s. What is its momentum?

• 5 kg* m/s

• 1 m/s

• 25 kg * m/s

• 25 m/s

Tags

NGSS.HS-PS2-2

How could you domonstrate momentum?

• 2 ice skaters push off each other in opposite directions

• throwing a ball

• a car driving and going into neutral

• rolling down a hill

Tags

NGSS.MS-PS2-1

What is the overall force acting on an object when all individual forces are combined?

• accaleration

• impulse

• momentum

• net force

Tags

NGSS.MS-PS2-2

When the mass of an object is doubled while the net force acting on it stays the same, what happens to the object’s acceleration?

• it stays the same

• in increases by 2

• it's halved

• it goes to 0

Tags

NGSS.MS-PS2-2

When an object is accelerating at a constant rate, what happens to the net force if the mass of the object is increased?

• net force increases

• net force stays the same

• acceleration has to increase

• net force decreases

Tags

NGSS.MS-PS2-2

If there's 0 net force on a system, what happens to the momentum?

• momentum changes

• mass changes

• objects stop moving

• momentum stays the same

Tags

NGSS.HS-PS2-2

Match the vocab word and definition.

• velocity changing over time

• vector

• force equals the mass times acceleration

• Newton's 2nd law

• has magnitide and velocity

• acceleration

What can change an objects momentum? (there's more than 1 correct answer)

• mass

• velocity

• acceleration

• force

Tags

NGSS.HS-PS2-2

What is the main goal of designing a device to minimize the force on an object during a collision?

• increase the object's speed

• increase time of collision

• make the object heavier

• decrease the object's velocity

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-1