Physical Sciences Break 1.0

CHEMISTRY TASK

See on Scoop.it – PHYSICAL SCIENCES BREAK 1.0 GRADE 12 QUESTIONS Alcohols are used in a variety of chemical reactions and as preservatives in certain medicines. All alcohols are toxic. Although ethanol is the least toxic of all alcohols, it i… Chipa Thomas Maimela‘s insight: maimelatct.wordpress.com See on maimelatct.wordpress.com

HYDROSPHERE

See on Scoop.it – PHYSICAL SCIENCES BREAK 1.0 The large amount of water on our planet is something quite unique. In fact, about 71% of the earth is covered by water. Of this, almost 97% is found in the oceans as saltwater, about 2,2% occurs as a solid in ice sheets, while the remaining amount…

IDEAL GAS LAWS

See on Scoop.it – PHYSICAL SCIENCES BREAK 1.0 The main assumptions of the kinetic theory of gases are as follows: Gases are made up of particles (e.g. atoms or molecules). The size of these particles is very small compared to the distance between the particles. These particles are constantly moving because they have kinetic energy. The particles…

ACIDS AND BASES

See on Scoop.it – PHYSICAL SCIENCES BREAK 1.0 Definition 1: Acids A Bronsted-Lowry acid is a substance that gives away protons (hydrogen cations H+), and is therefore called aproton donor. Definition 2: Bases A Bronsted-Lowry base is a substance that takes up protons (hydrogen cations H+), and is therefore called aproton acceptor. Chipa Thomas Maimela‘s insight: www.maimelatct.wordpress.com See on everythingscience.co.za

Newton’s laws

Definition 1: Newton’s first law of motion An object continues in a state of rest or uniform motion (motion with a constant velocity) unless it is acted on by an unbalanced (net or resultant) force. Definition 2: Newton’s second law of motion If a resultant force acts on a body, it will cause the body to accelerate…