Heat and temperature

heat is energy

• false
• true

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Energy is measured in units called.....

• pounds
• meters
• horsepower
• joules

A spontaneous flow of energy (energy in transit) from one object to another is

• heat

• temperature

• mechanical energy

• work

a measure of the average energy of molecular motion in a substance is

• heat

• temperature

• mechanical energy

• work

The temperature of a substance increases as___.

• the substance expands

• the energy of its particles increases

• the substance's volume increases

• the substance's mass increases

The more particles an object has at a given temperature,

• the higher the temperature
• the more thermal energy it has
• the more degrees it has 
• the more Kelvins it has

Tags

NGSS.MS-PS1-4

If you decrease the number of particles in a system, but keep the temperature constant

• the internal energy of the system will increase

• the internal energy of the system will decrease

• the internal energy of the system will not change

If you increase the number of particles in a system, but keep the temperature constant

• the internal energy of the system will increase

• the internal energy of the system will decrease

• the internal energy of the system will not change

If energy is added to a system then

• the work done on the system is positive

• the work done on the system is negative

• there is no work done on the system

If energy is released from a system then

• the work done on the system is positive

• the work done on the system is negative

• there is no work done on the system