Need physical science help?

1.) What is an explanation of heat?

Temperature

Total energy of moving molecules

Degree Celsius





2.) Can you have transfer heat by convection in a solid?

Yes, because the atoms are all in motion

Only for conductors of electricity

No, because convection requires the flow of atoms





3.) Why are car windows tinted?

So the people can feel important

To minimize heating the inside by radiation

Because tint is a poor conductor





4.) How did Fahrenheit determine 100 degrees?

He measured the boiling point of water

He looked at a thermometer

He measured his body temperature





5.) What temperature should your waterbed be?

Slightly higher than body temperature

Exactly room temperature

Near the boiling point of water





6.) Which material requires the least energy to change its temperature 2 degrees?

Ice, because it is colder

Water, because its specific heat is highest

Steam, because its specific heat is lowest





7.) How did Mpemba make this discovery?

He was observant and noticed something unusual when making ice cream

He was making ice cream and noticed it melted before he ate it

His teachers suggested he make some ice cream to prove the effectNeed physical science help?
These are the correct answers, I just did the test online and got a 100 (I'm homeschooled)



1. B

2. C

3. B

4. C

5. A

6. C

7. C