Forces and Motion Retrieval 2

What is needed to calculate work?

• force

• distance

• time

• mass

A soccer player kicks a ball with 20 Newtons of force causing it to travel 100 meters. How much work is done on the ball?

• 200 J

• 80 J

• 5 J

• 2000 J

Tags

NGSS.MS-PS3-5

Energy is measured in.....

• kilograms

• metres per second

• Joules

• metres

When a kettle boils, energy is transferred from the electrostatic store to the _________________ energy store.

• chemical

• kinetic

• elastic

• thermal

In the equation for gravitational potential energy, 'E_p' stands for

• electrical energy

• elastic potential energy

• kinetic energy

• gravitational potential energy

Tags

NGSS.MS-PS3-2

What is the gravitational potential energy of an 85 kg mountain climber at the summit of a 6267 m volcano?

Let g = 9.8N/kg

• 5,220,411 J

• 532,695 J

• 73.7 J

• 54,356.6 J

Tags

NGSS.MS-PS3-2

Which energy store is missing? Magnetic, electrostatic, nuclear, gravitational, elastic, thermal, chemical and....

• heating

• lighting

• kinetic

• sounding

What is the KE of a football which has a mass of 0.8 kg and is kicked at a velocity of 10m/s.

• 80 J
• 3.2 J
• 160 J
• 40 J

Tags

NGSS.MS-PS3-1

What is the kinetic energy of a 1500 gram object moving at a velocity of 100 m/s

• 112.5 J
• 7,500,000 J
• 75 J
• 7,500 J

Tags

NGSS.MS-PS3-1

The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed

• Energy cannot be created or destroyed, it can only transformed

• Energy can't be created, destroyed or transformed

• Energy cannot be created or destroyed.

Tags

NGSS.MS-PS3-5