Across
- Distance up (or down) divided by distance across on a graph
- The sum of all values divided by the number of values
- Force due to a jet, rocket or motor
- Rate of changing velocity (direction or speed)
- A rubbing force that acts in a direction opposite to an object's motion
- When the forces acting on an object are equal in size but opposite in direction
- Swirly flow in a fluid
- A force of tension between two objects
- A force of compression between two objects
Down
- Contact between a moving and another moving or stationary object
- A type of engine that works by producing a stream of fast flowing fluid
- Shaped to minimise drag forces
- Unit of distance
- Slope of a graph
- Speed in a given direction
- Rate of movement - distance travelled divided by time taken
- Friction force due to motion through a gas or liquid
- At a particular moment in time
- How far it is between two points
- Something that causes a mass to change speed or direction
- Data represented by a picture
- The fourth dimension, measured in seconds
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