Matter Test

What is the volume of a rectangular solid that is 40 centimeters long, 10 centimeters wide, and 5 centimeters high?

2000 cm^3

How can the motion of the particles in a liquid best be described?

particles that are close together and slide past each other

Density is an example of what kind of property?

physical

Ice melting is an example of what kind of change?

physical

Melting metal at a very high temperature is an example of what kind of change?

physical

Raul and Bonnie are trying to classify several objects that they found during a field trip to the beach. They collected a sample of seawater, a piece of driftwood, and several smooth pebbles. What property does the driftwood share with the pebbles that it does not share with the water?

Its particles vibrate, but are locked in place.

David said that water can be created in a lab by burning hydrogen gas in air. He said that water is not a compound, because only hydrogen is used to make water. What is wrong with David's statement?

Oxygen from the air combined with the hydrogen when it burned.

What is volume?

The amount of space an object occupies

Ben heats water in an iron pot on the stove. The water is not boiling. How does the motion of the water particles compare to the motion of the iron particles as he heats the water?

The water particles slide past each other faster, and the iron particles vibrate faster.

A substance's ability to rust is an example of what type of what type of property?

chemical

Flammability, which is the ability to burn, is an example of what type of property?

chemical

Paper burning is an example of what type of change?

chemical

Density is the ratio of mass to volume. Troy listed the density of four metals at 20 °C. If Troy has a 4-cm^3 cube of each of these metals, which cube will have the greatest mass? The density of brass is 8.9 The density of gold is 19.3 The density of iron is 7.8 The density of lead is 11.3

gold

The gravitational force on Mars is about one-third that of Earth's gravitational force. If a space probe has a mass of 300 kg and a weight of 660 pounds on Earth, what would be the mass and weight of this probe on Mars?

mass = 300 kg, weight = 220 pounds

What is the difference in how physical and chemical properties are observed?

physical properties can be observed without changing the identity of the substance, and chemical properties can only be observed by changing the identity of the substance

True or false: air is matter.

true