1.4 Pressure

How is gas pressure produced?

• By the absence of gas particles
• By the movement of gas particles in all directions
• By the movement of gas particles in one direction
• By the attraction between gas particles

What is atmospheric pressure?

• The pressure exerted by the atmosphere on objects
• The pressure exerted by the Sun
• The pressure exerted by objects on the atmosphere
• The pressure exerted by the Earth's core

What are the characteristics of gases?

• Gases have fixed volume and arrangement
• Gases have closely packed particles and fixed arrangement
• Gases have far apart particles and random arrangement
• Gases have fixed shape and arrangement

How is fluid pressure produced?

• By the movement of fluid particles in one direction
• By the attraction between fluid particles
• By the absence of fluid particles
• By the movement of fluid particles in all directions

What are the characteristics of solids?

• Fixed volume and arrangement
• Fixed shape and arrangement
• Closely packed particles and fixed arrangement
• Far apart particles and random arrangement

What is the equation to calculate fluid pressure?

• Fluid pressure (N/m2) = force (N) / area (m2)
• Fluid pressure (N/m2) = force (N) - area (m2)
• Fluid pressure (N/m2) = force (N) * area (m2)
• Fluid pressure (N/m2) = force (N) + area (m2)

What factors affect pressure in gases?

• Temperature and density
• Volume and density
• Temperature and volume
• Volume and weight

What happens to gas pressure when a gas cools down?

• The pressure remains the same
• The pressure decreases
• The pressure becomes zero
• The pressure increases

What is the equation to calculate pressure in solids?

• Pressure (N/m2) = force (N) * area (m2)
• Pressure (N/m2) = force (N) + area (m2)
• Pressure (N/m2) = force (N) / area (m2)
• Pressure (N/m2) = force (N) - area (m2)

What is upthrust in liquids?

• The force exerted by gravity on liquids
• The force exerted by liquids on gravity
• The force exerted by liquids on objects
• The force exerted by objects on liquids