6th Science Lesson 2-3 Gas Behavior Review

What is pressure?

• The pressure of a gas is the temperature of its particles over the surface area.
• The pressure of a gas is the force of its outward push (in Newtons) over an area (in square meters) of the walls of the container.
• The pressure of a gas is the amount of space an object takes up.
• The pressure of a gas is the size of the particles in a given state of matter.

How is the pressure of a gas measured?

• Pressure is measured in units of liter (L) or milliliters (mL).
• Pressure is measured in units of grams (g) or kilograms (kg).
• Pressure is measured in units of pascals (Pa) or kilopascals (kPa).
• Pressure is measured in units of meters (m) or centimeters (cm).

What happens when you heat a gas?

• When you heat a gas, its particles move faster, so the temperature increases.
• When you heat a gas, its particles empty out due to the pressure.
• When you heat a gas, its particles slow down, so the temperature decreases.
• When you heat a gas, its particles stay fixed in place.

What happens when the temperature of a gas at constant volume is increased?

• When the temperature of a gas at constant volume is increased, the pressure of the gas increases.
• When the temperature of a gas at constant volume is increased, the pressure of the gas decreases.

What happens when the temperature of a gas at constant volume decreases?

• When the temperature of a gas at constant volume is increased, the pressure of the gas increases.
• When the temperature of a gas at constant volume is increased, the pressure of the gas decreases.

What did French scientist Jacques Charles discover about the relationship between the temperature and volume of a gas?

• French scientist Jacques Charles discovered that when the temperature of a gas is pressurized, its volume expands.
• French scientist Jacques Charles discovered that when the temperature of a gas at constant pressure is increased, its volume increases. He also discovered that when the temperature of a gas at constant pressure is decreased, its volume decreases.
• French scientist Jacques Charles discovered that when the temperature of a gas is fixed in place, its volume stays the same.
• French scientist Jacques Charles discovered that when the temperature of a gas changes state of matter, its volume stays as a gas.

What did the scientist Robert Boyle discover about the relationship between the pressure and volume of a gas?

• Boyle discovered that when the pressure of a gas at constant temperature is increased, the volume of the gas decreases. He also discovered that when the pressure is decreased, the volume of increases.
• Boyle discovered that air pumps needed to be updated in the 1600s.
• Boyle discovered that water boils at 100 degrees Celsius.
• Boyle discovered that the pressure and volume are directly proportional.

How does the pressure of a gas change according to Boyle’s Law?

• The pressure does not change.
• The pressure changes in the opposite way.
• The pressure increases.
• The pressure decreases.