Results

What is the acceleration due to gravity at the space station.

By the end of this short course, you will be able to:

• Use negatives and opposites
• Simplify: expressions with absolute value
• Add integers
• Subtract integers

This course covers how to add, subtract, multiply and divide whole numbers.

Outcomes

In this lesson you will learn how to:

1. Identify and write algebraic expressions.
2. Recognise and work with like and unlike terms.
3. Simplify algebraic expressions.
4. Solve linear equations.

Applying Newton's first law to answer some true/false statements about why objects move (or not).

Outcomes

In this lesson you will learn about:

1. Rounding off numbers.
2. Estimating answers to calculations.

This YouTube video explores the concepts of approximations and estimations.

These three short online lessons discuss asteroids, comets and meteors.

Solving a word problem to find average velocity and speed of an object in one-dimension.

Forces at a distance are explained by fields (gravitational, electric, and magnetic) permeating space that can transfer energy through space. Magnets or electric currents cause magnetic fields; electric charges or changing magnetic fields cause electric fields.