Unit 5: work/power/energy

Kilograms measures weight

• true

• false

Unit for mass

• Kilograms (kg)

• Newtons (N)

• Joules (J)

• Watts (W)

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Simple machines, like with a ropes of a pulley, or a moving dolly which _______   the distance from an object,

allowing less force to be required to the same task (amount of work).

• increase

• decrease

• the same

• is unknown

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Simple machines, like with a ropes of a pulley, or a moving dolly which change the distance from an object, so that the force need to do a job is ​ _______ .

• increase

• decrease

• the same

• is unknown

Simple machines, like with a ropes of a pulley, or a crowbar increase the distance from an object you want to move,

so that the force need to do a job is ​less.

The job doesn't change, the amount work of done is ​_________ ,

it's just easier for us to do job.

• increase

• decrease

• the same

• is unknown

Tags

NGSS.HS-PS3-3

Energy due to motion is ____________ energy.

• kinetic energy

• potential energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

__________ is stored energy.

• kinetic energy

• potential energy

Tags

NGSS.MS-PS3-2

The graph is an example of ___________

• an object in free fall

  (Full KE, increasing as the object gets closer to the ground)

• energy conservation of a swinging object (KE+PE =100% total E

  the type of energy switches between the 2)

• A car coming to a stop

  (slowing down and staying at rest)

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

When a pendulum swings, where is potential energy the greatest?

• 1 and 5

• 2 and 4

• 3

• apple sauce

Tags

NGSS.MS-PS3-2

When a pendulum swings, where is Kinetic energy the greatest?

• 1 and 5

• 2 and 4

• 3

• apple sauce

Tags

NGSS.MS-PS3-1