Week 5 - Physics

The unit of force is

• m/s
• m/s^2
• newton
• kg

What force brings the pencil down?

• Applied
• Magnetic
• Normal
• Gravitational

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What is Newton's First Law

• F=ma
• Every action has an equal and opposite reaction
• An object at rest stays at rest, an object in motion stays in motion. 
• Friction 

F=ma

• Newton's
  1st
  Law of Motion
• Newton's
  2nd
  Law of Motion
• Newton's
  3rd
  Law of Motion

Tags

NGSS.MS-PS2-2

1. How does the impact time affect the force with which the egg container you constructed hitting the ground?

• a. The shorter the amount of time it takes the container to hit the ground the more likely the objects force will be greater
• b. The longer the amount of time it takes the object to hit the ground the less likely the objects force will be greater

Tags

NGSS.MS-PS2-2

The independent variable in the Egg Drop Project is: 

• a. The egg
• b. The container
• c. The time it takes for the container to drop from the top of the bleachers to the ground

When the container hit the ground the egg inside continued to fall. How does Newton's first law apply to the egg inside the container? 

• a. The Law of Acceleration state that F=ma
• b. The Law of Inertia states that an object in motion will stay in motion unless acted upon by an unbalanced force.
• c. The Law of Action-Reaction states for every action there is an equal and opposite reaction.

What is the relationship between impact force and time? 

• a. There is no relationship between impact force and time
• b. The greater the amount of time it takes for an object to hit another surface the less the force
• c. The lesser the amount of time it takes for an object to hit another surface the greater the force

How does an airbag protect a driver in a collision?

• It absorbs the impact.

• It absorbs the momentum.

• It absorbs the energy.

• It increases the time.

Tags

NGSS.HS-PS2-3

NGSS.HS-PS3-1

What is the force experience by a 0.5 kg egg that goes from 10 m/s to rest in 0.1 seconds?

• 5 N

• 50 N

• 500 N

• None of These

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1