Physics, Thermodynamics, Pre Assessment

Two containers of the same gas (which we assume to be ideal) have the following masses and temperatures:
Which box has the gas with the largest thermal energy?

• Box A
• Box B
• Both A and B
• Not enough info

A steady force pushes in the piston
of a well-insulated cylinder. In this
process, the temperature of the gas

• Increases
• Stays the same
• Decreases
• Not enough info

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Dragging an object across a rough surface makes it warm, or even hot. The temperature increase occurs because of

• Work
• Heat
• Thermal
• Both work and heat

Tags

NGSS.HS-PS3-4

100 J is added to a sample of ideal gas as heat. The gas then expands against a piston, doing 70 J of work. During this process

• The temperature of the gas increases
• The temperature of the gas decreases
• The temperature of the gas stays the same

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-2

A large –20°C ice cube is dropped into a super-insulated container holding a small amount of 5°C water, then the container is sealed. Ten minutes later, is it possible that the temperature of the ice cube will be colder than –20°C?

• yes
• No
• Maybe

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A cylinder of gas has a frictionless but tightly
sealed piston of mass M. Small masses are
placed onto the top of the piston, causing it to
slowly move downward. A water bath keeps
the temperature constant. In this process

• Q > 0
• Q = 0
• Q < 0
• Not enough info.

Tags

NGSS.HS-PS3-1

The efficiency of this heat engine is

• .2
• .60
• .50
• .40

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-1

The following pairs of temperatures represent the temperatures of hot and cold reservoirs for heat engines. Which heat engine has the highest possible efficiency?

• A.300°C, 30°C
• A.250°C, 30°C
• A.200°C, 20°C
• A.100°C, 10°C

Tags

NGSS.HS-PS3-4

Two identical cylinders, A and B, contain the same type of gas at the same pressure. Cylinder A has twice as much gas as cylinder B. Which is true?

• TA < TB
• TA = TB
• TA > TB
• not enough info

A cylinder of gas has a frictionless but
tightly sealed piston of mass M. A small
flame heats the cylinder, causing the piston
to slowly move upward. For the gas inside
the cylinder, what kind of process is this?

• Isochoric
• Isobaric
• Isothermal
• Adiabatic

Tags

NGSS.HS-PS3-4