Quiz 3 (class 7)

What is the force of attraction (Gravity)?

• The force that pulls objects towards the Earth.

• The force that one object exerts on another surface when they collide.

• The capacity to do work or cause a change in a system.

• A system of parts working together to perform a specific function.

What is the force of compression?

• The force that pulls objects towards the Earth.

• The force that one object exerts on another surface when they collide.

• The capacity to do work or cause a change in a system.

• A system of parts working together to perform a specific function.

What are mechanisms?

• Systems of parts working together to perform a specific function.

• The force that pulls objects towards the Earth.

• The capacity to do work or cause a change in a system.

• The force that one object exerts on another surface when they collide.

What is energy?

• The capacity to do work or cause a change in a system.

• The force that pulls objects towards the Earth.

• The force that one object exerts on another surface when they collide.

• A system of parts working together to perform a specific function.

What is a solid structure?

• A structure made of strong construction materials.

• A structure that uses a network of materials to support each other.

• A structure with a hollow, curved shape.

• A structure that combines different types of structures.

What are frame structures?

• Structures that use a network of materials that support each other.

• Structures made of strong construction materials.

• Structures with a hollow, curved shape.

• Structures that combine different types of structures.

What are shell structures?

• Structures with a hollow, curved shape.

• Structures that use a network of materials that support each other.

• Structures made of strong construction materials.

• Structures that combine different types of structures.

What is a combined structure?

• A structure that contains different solid components, frame, and shell.

• A structure made of strong construction materials.

• A structure that uses a network of materials that support each other.

• A structure with a hollow, curved shape.

What is a compound machine?

• Two or more simple machines working together.

• A machine that uses a system of levers.

• A machine that uses a flat and sloping surface.

• A machine that uses a network of materials.

What is an inclined plane?

• A sloping surface used to alter effort and distance.

• A machine that uses a system of levers.

• A machine that uses a flat and sloping surface.

• A machine that uses a network of materials.