CK-12 Foundation
Ck 12: Physical Science: Simple Machines
[Free Registration/Login may be required to access all resource tools.] What a machine is, the three ways that machines make work easier and simple and compound machines.
CK-12 Foundation
Ck 12: Physical Science: Velocity
[Free Registration/Login may be required to access all resource tools.] Difference between velocity and speed, using vector arrows to represent velocity, objects that have different velocities and how to calculate average velocity.
CK-12 Foundation
Ck 12: Physical Science: Direction
[Free Registration/Login may be required to access all resource tools.] Explores direction and why it is important, direction as a component of motion, and how to represent direction and distance with vectors.
CK-12 Foundation
Ck 12: Physical Science: Generators and Motors
[Free Registration/Login may be required to access all resource tools.] Expalins how an electric generator works.
CK-12 Foundation
Ck 12: Physical Science: Refraction
[Free Registration/Login may be required to access all resource tools.] Refraction of light in matter and how light changes its speed and angle of refraction according to the type of medium it is travelling through.
CK-12 Foundation
Ck 12: Physical Science: Ultrasound
[Free Registration/Login may be required to access all resource tools.] What ultrasound and echolocation are, and how sonar and ultrasonography are used.
CK-12 Foundation
Ck 12: Physical Science: Wavelength
[Free Registration/Login may be required to access all resource tools.] What wavelength is and how it relates to the energy of a wave.
CK-12 Foundation
Ck 12: Physical Science: Electric Transformers
[Free Registration/Login may be required to access all resource tools.] Discusses how an electric transformer works and step-up and step-down transformers.
CK-12 Foundation
Ck 12: Physical Science: Hearing Loss
[Free Registration/Login may be required to access all resource tools.] Explores what deafness is, how loud sounds cause hearing loss, and how to prevent hearing loss using hearing protectors.
CK-12 Foundation
Ck 12: Physical Science: Surface Wave
[Free Registration/Login may be required to access all resource tools.] Definition and example of a surface wave, how the medium moves in a surface wave and why ocean waves break.
CK-12 Foundation
Ck 12: Physical Science: Electromagnet
[Free Registration/Login may be required to access all resource tools.] Explores what an electromagnet is, its strength, and how it can easily be turned on and off.
CK-12 Foundation
Ck 12: Physical Science: Wave Frequency
[Free Registration/Login may be required to access all resource tools.] Definition of wave frequency and how it is related to the energy of a wave.
CK-12 Foundation
Ck 12: Physical Science: Forms of Energy
[Free Registration/Login may be required to access all resource tools.] Introduction to the seven different forms of energy.
CK-12 Foundation
Ck 12: Physical Science: Forms of Energy
[Free Registration/Login may be required to access all resource tools.] Introduction to forms of energy including the seven different forms.
CK-12 Foundation
Ck 12: Physical Science: Heating Systems
[Free Registration/Login may be required to access all resource tools.] Explores the function of a heating system and how it works.
CK-12 Foundation
Ck 12: Physical Science: Transverse Wave
[Free Registration/Login may be required to access all resource tools.] What a transverse wave is, its crests and troughs and what an S wave is.
CK-12 Foundation
Ck 12: Physical Science: Artificial Light
[Free Registration/Login may be required to access all resource tools.] What artificial light is and five different types, and how each type produces visible light.
CK-12 Foundation
Ck 12: Physical Science: Calculating Work
[Free Registration/Login may be required to access all resource tools.] How to calculate work from force and distance and vice versa, and the SI unit for work.
CK-12 Foundation
Ck 12: Physical Science: Oceanic Pressure
[Free Registration/Login may be required to access all resource tools.] Oceanic pressure and how it changes with depth, and how to adjust to this change.
CK-12 Foundation
Ck 12: Physical Science: Earth as a Magnet
[Free Registration/Login may be required to access all resource tools.] Explains how Earth is a magnet, its geographic and magnetic poles, and its magnetic field.
CK-12 Foundation
Ck 12: Physical Science: Energy Conversion
[Free Registration/Login may be required to access all resource tools.] Decribes how energy changes from one form to another and energy changes between kinetic and potential energy.
CK-12 Foundation
Ck 12: Physical Science: Longitudinal Wave
[Free Registration/Login may be required to access all resource tools.] What a longitudinal wave is, its compressions and rarefactions and what a P wave is.
CK-12 Foundation
Ck 12: Physical Science: Projectile Motion
[Free Registration/Login may be required to access all resource tools.] Projectile motion and combining forces, examples of projectile motion.
CK-12 Foundation
Ck 12: Physical Science: Thermal Radiation
[Free Registration/Login may be required to access all resource tools.] How thermal energy is transferred by thermal radiation and sources of thermal radiation.