TOPIC 5 : SOLID AND FLUID

Choose the RIGHT of characteristics of SOLID.

• Waterfall

• Lots of free space

• The particle slide to each other

• Fixed shape

Choose NOT CORRECT characteristic of LIQUID.

• Table

• Little space between particle

• Slide past each other

• Do not have fixed shape

Choose the RIGHT example for GAS.

• Book

• Laptop

• Helium balloon

• A cup of coffee

SI unit for density.

• no unit

Pressure defined as........................

What is the unit of measurement for pressure?

• pascal
• grams
• milliters
• meters

What pressure does a 4000N horse exert on the ground if each foot is 10cm² in SI unit?

• 4,000,000 N/m²

• 1,000,000 N/m²

• 400 N/m²

• 10 N/cm²

The diagram shows a brake system of a car. Which principle is used in this system?

• Pascal’s principle

• Bernoulli’s principle

• Archimedes’ principle

• Principle of conservation of momentum

What direction is the buoyant force in?

• Downward
• Left
• Right
• Upward

When the weight of an object is greater than the buoyant force, the object will ... 

• Sink
• Float 
• Expand
• Shrink