Year 10 Unit 9

What are averages used for?

• To find the range of a dataset.

• To measure the spread of a dataset.

• To find the central tendency (or typical value) of a set of data.

• To determine the maximum value of a dataset.

What are coordinates used to determine?

• The distance between two points.

• The position of a point in space.

• The slope of a line.

• The area of a shape.

What defines a "day"?

• The time it takes for the Earth to revolve once about its axis.

• The time between two sunsets.

• The time it takes for the moon to orbit the Earth.

• The time for one complete orbit around the Sun.

What is plotted on a distance-time graph?

• Distance against speed.

• Time against acceleration.

• Distance against time.

• Velocity against time.

What does an equation represent?

• A. A graph with a straight line.

• B. A mathematical statement with an equal sign.

• C. A method for finding the midpoint of a line.

• D. A calculation of averages.

What does a gradient measure?

• The midpoint of a line segment.

• The speed of an object.

• The slope of a line.

• The distance traveled over time.

What does a line graph do?

• Represents data using bars.

• Joins adjacent points with lines.

• Shows relationships between variables with dots.

• Plots circular trends in data.

Linear equations are equations of the form (a)   .

The midpoint of a line segment is (a)  

• The slope of the line segment.
• The distance from one endpoint to a
• The point exactly in the middle of
• The point closest to the origin.

What defines a "month"?

• The time it takes for the moon to orbit the Earth.

• The time it takes for the Earth to rotate about its axis.

• The time between two equinoxes.

• The time it takes for the Earth to orbit the Sun.