Integrated Physics and Chemistry Practice

Energy of a rock sitting on a cliff is an example of...

• gravitational

• elastic

• chemical

Tags

NGSS.HS-PS2-4

How do you calculate power?

• $P\ =\ \frac{W}{t}$

• $P\ =\ \frac{E}{t}$

• $P\ =\ w\times t$

• $P\ =\ \frac{bbq}{chicken}$

How much work is done by a motor that lifts a train car on El Toro to the top of a 70-meter hill using a force of 15,000 N?

• 105,000 J

• 214.29 J

• 1,050,000 J

Which combination of fundamental units can be used to express energy?

• $kg\ \times\frac{m^2}{s}$

• $kg\times\frac{m^2}{s^2}$

• $kg\times\frac{m}{s}$

Tags

NGSS.HS-PS3-2

A car travels at a constant speed v up a hill from point A to point B. As the car travels from A to B, its gravitational potential energy

• increases and its kinetic energy remains the same

• remains the same and its kinetic energy decreases

Tags

NGSS.HS-PS3-1

Energy from a compressed spring would be an example of...

• kinetic

• elastic

• gravitational

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

What is the formula for work?

• Force = work x distance
• Distance = force x work
• Work = force x distance
• Work = force x mass

A light plastic cart and a heavy steel cart are both pushed with the same force for a distance of 1.0 m, starting from rest. After the force is removed, the kinetic energy of the light plastic cart is ________ that of the heavy steel cart.

• greater than

• equal to

Tags

NGSS.HS-PS2-1

If Nellie Newton pushes an object with twice the force for twice the distance, she does:

• The same work

• Twice the work

• Four times the work

A car that travels twice as fast as another when braking to a stop will skid:

• Twice as far
• Four times as far
• Depends on the mass of the cars

Tags

NGSS.HS-PS2-1