Science - Forces & Energy Grade 9, Physics

If the smaller block has a higher temperature, it definitely has more heat than the larger object.

TRUE or FALSE

• TRUE

• FALSE

Answer explanation

It's possible for the total thermal energy of the colder/larger object to be more than the total energy of the hotter/smaller object.

Both blocks are 20 degrees Celcius.

Choose the TRUE statement.

• The 2 blocks have the same temperature and heat

• The 2 blocks have the same temperature, but the 1st block has more heat

• The 2 blocks have the same temperature, but the 2nd block has more heat

Density =

• volume/mass

• mass/volume

• mass x volume

Mass =

• density x volume

• density/volume

• volume/density

Which usually has the highest density?

• gas

• liquid

• solid

Which usually has the lowest density?

• gas

• liquid

• solid

Which of these has the lowest density?

• gold

• wood

• water

• air

Which of these has the highest density?

• gold

• wood

• water

• air

An object will float on water if it is

• more dense than water

• less dense than water

An object will sink in water if it is

• more dense than water

• less dense than water