unit assessment 1

The density of pyrite is 5g/cm³ . This is an example of 

• physical intensive property
• physical extensive property
• chemical change
• chemical property

The rose is red. This is an example of a 

• physical extensive property
• Chemical property
• physical intensive property
• physical change

The mass of a lead cube is 64 grams. This is an example of 

• physical intensive property
• physical extensive property
• chemical change
• physical change

Which of these is not an element?

• Iron
• Gold
• Silver
• Iron Oxide

State of matter in which materials have a definite shape and volume.

• Solid state

• Liquid state

• Gas state

• Plasma state

Particles (molecules) in a ______________________ have more energy than the other states of matter.

• gas
• solid
• liquid

This state of matter exists at temperatures over 5000 degrees Celsius.

• solid

• liquid

• gas

• plasma

What would be the weight of a 10 kg object on earth?

• 1 N

• 10 N

• 0.1 N

• 100 N

A person accelerating upward in an elevator would experience a temporary __________ in __________.

• increase, weight

• decrease, weight

• increase, mass

• decrease, mass

The weight of an object _________ as it moves away from the center of Earth.

• increases
• stays the same
• triples
• decreases