Science Topic 1, Lesson 2 Review

What happens to the mass of an object when the force of gravity upon it changes?

• It doubles.
• It does not change.
• It increases by 10%
• It decreases by half.

In order to measure matter, what do you also need to measure?

• Temperature and physical properties.
• Solids and liquids.
• Mass and volume.
• Weight and height.

How does the force of gravity impact an object’s weight?

• The weight doubles.
• The weight changes as the force of gravity changes.
• The weight decreases by half.
• The weight decreases by 10%.

What system is used by scientists to measure mass?

• Scientists use a system called the International System of Units (SI).
• Scientists use a system called the 3 branches of measurement.
• Scientists use a system called the balances and scales.
• Scientists use a system called the density factor.

How can you determine the density of a sample of matter?

• You can determine the density of a sample of matter by dividing its weight by its height.
• You can determine the density of a sample of matter by dividing its temperature by its weight.
• You can determine the density of a sample of matter by dividing its mass by its volume.
• You can determine the density of a sample of matter by dividing its height by its length.

What will determine if an object sinks or floats when dropped into a body of water?

• Its density.
• Its temperature.
• Its ability to change into a substance.
• Its ability to transform energy.

What factor affects the density of a substance?

• Height
• Temperature
• Chemical makeup
• Whether its a compound or a molecule

Why can density be used to identify substances?

• Density can be used to identify substances because it transfers energy from one molecule to another.
• Density can be used to identify substances because it can change an object from a solid to a liquid.
• Density can be used to identify substances because it increases or decreases an object's mass.
• Density can be used to identify substances because it does not change with the shape of an object.

A measure of the force of gravity acting on an object is...

• volume
• mass
• density
• weight

The measurement of how much mass of a substance is contained in a given volume is...

• volume
• mass
• density
• weight