work and energy

Formula of work is?

• W = Fa

• W = Fs

• W = Fm

• W = Fms

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

Unit of work is?

• Newton meter

• Newton meter square

• Newton/meter

• Meter/Newton

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

A force of 15 N displaced an object 12 m in the direction of force? Work done is

• 15/12

• 12/15

• 180

• 27

Work done is negative in which of the following?

• Ball thrown up

• Ball thrown horizontally

• Ball thrown down

• Ball in rest position

The energy possessed by Laptop on a table is?

• Only PE

• Only KE

• Both PE and KE

• No energy

Tags

NGSS.MS-PS3-2

1 KiloJoule is equal to?

• 100 Joules

• 10 Joules

• 100 Newtonmeters

• 1000 Newton meters

A coconut falling from a tree possess?

• Only PE

• Only KE

• Both PE and KE

• None

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A bike of 80 kgs is moving with a velocity of 15m/s. Calculate KE?

• 4500

• 9000

• 18000

• 36000

Tags

NGSS.MS-PS3-1

An object of mass 12 kg has PE of 480J on earth ( g = 10 ). Calculate the height?

• 2m

• 4m

• 6m

• 8m

Tags

NGSS.MS-PS3-2

Which law states that Energy is neither created nor destroyed?

• Conservation of momentum

• Conservation of Energy

• Conservation of Matter

• Both B and C

Tags

NGSS.MS-PS3-5