As thermal energy is added to a substance, which of the following changes can be predicted?
Spacing between particles will decrease.
Temperature of the substance will decrease.
Vibration of the individual particles will increase.
The pressure of the substance will increase.
11 answers
Vibration of the individual particles will increase.
Click on the either raw material or composite material that best represents each example.
Raw material:
Composite materials:
Fiber glass
Gold
Carbon Fiber
Copper
Kevlar
Coal
Raw material:
Composite materials:
Fiber glass
Gold
Carbon Fiber
Copper
Kevlar
Coal
Raw material:
- Gold
- Copper
- Coal
Composite materials:
- Fiber glass
- Carbon Fiber
- Kevlar
- Gold
- Copper
- Coal
Composite materials:
- Fiber glass
- Carbon Fiber
- Kevlar
A limited edition Nike shoe was recently manufactured in China and needs to be shipped to the Nike store in San Francisco. Put the list below in the correct order to have the shoes shipped from China to San Francisco.
Port of Long Beach
Transport truck in China
Surface streets
Shipping container on a ship
Freeways
Transport truck in America
Port of Long Beach
Transport truck in China
Surface streets
Shipping container on a ship
Freeways
Transport truck in America
1. Transport truck in China
2. Shipping container on a ship
3. Port of Long Beach
4. Transport truck in America
5. Freeways
6. Surface streets
2. Shipping container on a ship
3. Port of Long Beach
4. Transport truck in America
5. Freeways
6. Surface streets
Give 2 examples of transportation that is used for public transportation only and 2 examples of transportation that is used for commercial transportation only.
Public transportation only examples:
1. Public buses
2. Commuter trains
Commercial transportation only examples:
1. Cargo shipping vessels
2. Air freight services
1. Public buses
2. Commuter trains
Commercial transportation only examples:
1. Cargo shipping vessels
2. Air freight services
How are convection currents produced in the air?
A Wind causes convection currents by stirring up the air.
B Cold air is less dense, so it rises. As the cold air rises, warm air descends.
C Warm air is less dense, so it rises. Cold air moves in to take its place.
D Big weather events like hurricanes and tornadoes cause convection currents.
A Wind causes convection currents by stirring up the air.
B Cold air is less dense, so it rises. As the cold air rises, warm air descends.
C Warm air is less dense, so it rises. Cold air moves in to take its place.
D Big weather events like hurricanes and tornadoes cause convection currents.
C Warm air is less dense, so it rises. Cold air moves in to take its place.
This is an extra credit question!
Answering this question correctly gives students the chance to earn an extra point on the Unit 6 Test. Answering this question incorrectly does not hurt a student's grade in the class. This question was the most missed question from the Semester A Unit 6 Test.
A machine's main purpose is:
A To change the effort of the work by increasing the distance a force is applied or changing its direction.
B To decrease the amount of work is done by increasing the distance a force is applied or changing its direction.
C To increase the force you apply by changing its direction or multiplying the distances it is applied.
D To increase the power used by decreasing the amount of time you have to do a certain work.
Answering this question correctly gives students the chance to earn an extra point on the Unit 6 Test. Answering this question incorrectly does not hurt a student's grade in the class. This question was the most missed question from the Semester A Unit 6 Test.
A machine's main purpose is:
A To change the effort of the work by increasing the distance a force is applied or changing its direction.
B To decrease the amount of work is done by increasing the distance a force is applied or changing its direction.
C To increase the force you apply by changing its direction or multiplying the distances it is applied.
D To increase the power used by decreasing the amount of time you have to do a certain work.
C To increase the force you apply by changing its direction or multiplying the distances it is applied.