How do machines move?

What are the two properties of matter?

• Weight and Density

• Volume and Mass

• Thrust and Drag

• Gravity and Buoyancy

What is the measure of the force of gravity on matter?

• Volume

• Density

• Buoyancy

• Weight

What is the measure of the amount of space an object occupies?

• Mass

• Weight

• Density

• Volume

What is the downward force that pushes on an object towards the center of the Earth?

• Density

• Friction

• Buoyancy

• Gravity

What is the upward force that pushes an object towards the surface of a liquid?

• Buoyancy

• Friction

• Gravity

• Density

What is the mass of an object divided by its volume?

• Density

• Mass

• Weight

• Volume

What is the force that works against movement?

• Thrust

• Drag

• Friction

• Lift

What is the force that pulls a plane forwards?

• Drag

• Lift

• Thrust

• Friction

What is the force that lets a plane move upwards?

• Weight

• Thrust

• Drag

• Lift

What is the shape of the wings that makes the air flow faster over them?

• Volume

• Aerodynamics

• Density

• Weight