Forces and Motion Quiz (M)

What is a force?

• A push or a pull exerted on an object

• The parts that keep a rocket flying straight

What is gravity?

• The attractive force between objects

• A force that works against forward motion

What is drag?

• A force that works against forward motion

• The attractive force between objects

What is inertia?

• The attractive force between objects

• The property of matter that causes objects to resist any change in its motion

What are rocket fins?

• The parts that keep a rocket flying straight

• The property of matter that causes objects to resist any change in its motion

What does compressed mean?

• When objects are squeezed together

• A measure of the gravitational force exerted on an object

What is weight?

• A measure of the gravitational force exerted on an object

• When objects are squeezed together

What is ballast?

• Heavy substance used to add stability or weight

• Provides the energy to move a vehicle

What does the propulsion subsystem do?

• Controls speed and direction of a vehicle

• Provides the energy to move a vehicle

What does the structural subsystem do?

• Provides structural support for all the other vehicle components

• Controls speed and direction of a vehicle