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Listed under:  Mechanical energy

### Simple harmonic motion

This collection of six digital curriculum resources includes resources that develop the theoretical and practical aspects of simple harmonic motion (SHM). Video sequences illustrate the fundamental kinematic principles of SHM and reference web pages provide background material on the mathematical techniques required, including ...

### Newton’s laws

This collection of nine digital curriculum resources examines forces and their effects. Video sequences develop the theoretical and practical aspects of Newton's three laws of motion, weight, friction, the normal force and centre of mass. Web pages provide background material as well as explaining frames of reference and ...

### Simple harmonic motion

Use your knowledge of calculus and circular motion to analyse back-and-forth motion. Discover how the position, velocity and acceleration vary, but are closely related. Learn how to apply the theory to vibrating objects such as pendulums and loudspeakers. This resource consists of a video in four sections with a supporting ...

### Energy and power

Learn how work and energy are related, and how the energy of systems can be used to solve problems about motion. Identify situations in which mechanical energy is conserved. Calculate the power of moving objects. This resource consists of a video in six sections with a supporting web page containing background material.

### Pushing and pulling: assessment

Test your understanding of push and pull forces by moving animals using monkey power. Investigate and then predict the effects of applying a force to move a range of objects of various mass. For example, select two monkeys to move a pelican, and predict whether they will move the pelican slowly, quickly or too fast.

### Energy and forces - early years

This collection of 20 interactive learning objects introduces students to the concepts of forces and energy. It is organised into four categories - energy conversions; forms of energy; energy management; and forces. The learning objects enable students to build energy and food chains, design energy-efficient houses, and ...

### Motion and forces

This collection of 15 digital curriculum resources is organised in three categories - measuring motion; effects of forces; and friction. The collection includes learning objects that demonstrate how motion can be represented and recorded, as well as investigating the forces that influence it. Graphical techniques are frequently ...

### Constant acceleration

Learn to use your knowledge of graphs and calculus to analyse the way things move. Follow the derivation of equations to describe the position, velocity and acceleration of a moving object. Deal conceptually with both positive and negative accelerations. This resource consists of a video in three sections with animations ...

### Projectiles

Learn to analyse the motion of an object that is projected into the air. Look at the vertical and horizontal components of the motion. Discover how the range of a projectile depends on the angle of projection. This resource consists of a video in five sections with a supporting web page containing background material.

### Newton’s laws

Learn about the effect of unbalanced forces on the motion of objects. Discover why the force of friction delayed the scientific study of motion and how Galileo made an important breakthrough. View demonstrations of Newton's three laws of motion. Analyse real-life situations to find the various forces acting and their effects. ...

### Why do astronauts float in space?

Have you wondered what it would be like to be an astronaut floating around in the International Space Station? In this clip, Catalyst's Dr Derek Muller investigates what causes this weightlessness in space. Derek challenges some people visiting the Powerhouse Museum in Sydney to explain why they think astronauts float. ...

### Meteorites, asteroids, orbiting and gravity

Learn how Galileo Galilei's work overturned Aristotle's ideas about falling objects and led to an understanding that Earth revolves around the sun. Find out how Isaac Newton showed that the laws of motion on Earth and in space are the same, and that he discovered that the gravitational force of attraction between any two ...

### Making a mobile phone disco

Have you ever wondered how sound travels? Watch Ruben Meerman, the Surfing Scientist, as he makes a mini disco using his mobile phone to discover the answer.

### Friction: friend or foe?

What part does the force of friction play in our everyday lives? Friction can be an advantage (friend) or a problem (foe). Join interviewer Doug Traction and professors Static, Slide, Rolling and Fluid at the National Tribology Research Centre as they have forceful fun investigating friction. This video won a prize in the ...

### Rivers of power

Join canyoning instructor Zak Griffiths as he investigates a river's incredible force and energy. See how features of the river can change from one day to the next. View an animation showing how various materials in the river are transported by moving water.

### Cracking a glass by singing

Have you ever seen a glass being shattered by someone singing a top C, in a movie at least? To see whether it really is possible to crack a glass with just a sound, Sleek Geeks engage the help of real-life Australian opera singer Jane Parkin.

### An eclipse of the Moon

The phases of the Moon and lunar eclipses occur due to the Moon's orbit of Earth, and its position in relation to both the Earth and the Sun. Watch this animation showing a model of the Moon's orbit, its phases and a lunar eclipse. Discover what a total lunar eclipse is and what causes the red colour of a 'blood moon'.

### Backyard Science: forces

This resource, including student videos, provide opportunities for students to identify types of forces, determine whether forces are balanced or unbalanced and compare water and air resistance. They will conduct an investigation into the relationship between friction and different types of surfaces. Students will design, ...

### EagleCat: motion graphs

Investigate distance–time and velocity–time graphs by changing position, speed and acceleration.

### Making music

Make musical notes by plucking a stringed instrument. Explore how a vibrating string creates pressure waves through the air. Look at graphs showing sounds as a waveform. Explore the relationships between string length, musical pitch and wave frequency. Compare musical notes with soundwave patterns and predict one from the ...