Physics Power

45 J of work were done on the object that moved 5 meters. How much force was applied to the object?

• 8 N

• 225 N

• 9 N

• 0 N

The net work done by a net force acting on an object is equal to the change in the kinetic energy of the object.

• Force-Work Theorem

• Work-Kinetic Energy Theorem

• Force-Kinetic Energy Theorem

• Work-Force Theorem

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When my velocity triples, my kinetic energy increases by ______ times.

• 9

•  3 

• 1.5

• 4.5

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A 12 kg book is pushed from rest to a final velocity of 10 m/s. The book travels 6 m. How much force was the book pushed with?

• 600 N

• 100 N

• 200 N

• 1200 N

Tags

NGSS.MS-PS2-2

What is the KE at point B?

• 14 J

• 12 J

• 6 J

• 8 J

Tags

NGSS.MS-PS3-1

What is the Total Mechanical Energy at point A?

• 500,000 J

• 400,000 J

• 200,000 J

• 50,000 J

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is the KE at the bottom?

• 15,000 J

• 3,750 J

• 7,500 J

• 11,250 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

At what position does the pendulum have the greatest kinetic energy?

• Position D

• Position C

• Position B

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Calculate the kinetic energy of a truck that has a mass of 2900 kg and is moving at 55 m/s.

• 4,386,250 J

• 159,500 J

• 79,750 J

• 8,772,500

Tags

NGSS.MS-PS3-1

A worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object?

• 18 m

• 4 m

• 10 m

• 6 m

Tags

NGSS.MS-PS3-5