Energy 2 (NJCTL)

A +24 N force is applied to an object that moves 10 m in the same direction during the time that the force is applied. How much work is done to the object?

• -60 J

• -120 J

• 240J

• 360 J

Tags

NGSS.HS-PS3-1

A +24 N force is applied to an object that moves 10 m in the opposite direction during the time that the force is applied. How much work is done to the object?

• -240 J

• -120 J

• 120 J

• 60 J

• I need help

A +24 N force is applied to an object that is stationary during the time that the force is applied. How much work is done to the object?

• -240 J

• -120 J

• 0 J

• 120 J

• I need help

How much force must be applied to an object such that it gains 100 J of energy over a distance of 20 m?

• 0 N

• 5 N

• 100 N

• 2000 N

• I need help

Tags

NGSS.HS-PS3-1

Over what distance must a 400 N force be applied to an object such that it gains 1600 J of energy?

• 4 m

• 16 m

• 40 m

• 160 m

• I need help

Tags

NGSS.HS-PS3-1

A boy rides a bike at a constant speed 3 m/s by applying a force of 100 N. How much work will be done during 100 seconds?

• 1 J

• 300 J

• 10,000 J

• I need help

• 30,000 J

Tags

NGSS.HS-PS3-1

A horse pulls a sleigh at a constant speed 1.2 m/s by applying a force of 350 N. How much work will be done during 100 seconds?

• 120 J

• 700 J

• 35,000 J

• 42,000 J

• I need help

Tags

NGSS.HS-PS3-1

A book is held at a height of 2.0 m for 20 s. How much work is done on the book?

• 0 J

• 10 J

• 40 J

• 400 J

• I need help

A barbell of mass "m" is lifted vertically upwards, at a constant velocity, to a distance "h" by an outside force. How much work does that outside force do on the barbell?

• mg

• -mgh

• mgh

• -mg

• I need help

Tags

NGSS.HS-PS2-4