Strand 7.1: Forces interact with matter
Forces are push or pull interactions between two objects. Changes in motion, balance and stability, and transfers of energy are all facilitated by forces on matter. Forces, including electric, magnetic, and gravitational forces, can act on objects that are not in contact with each other. Scientists use data from many sources to examine the cause and effect relationships determined by different forces.
7.1.1 Carry out an investigation which provides evidence that a change in an object’s motion is dependent on the mass of the object and the sum of the forces acting on it. Various experimental designs should be evaluated to determine how well the investigation measures an object’s motion.Emphasize conceptual understanding of Newton’s First and Second Laws. Calculations will only focus along one-dimensional movement; the use of vectors will be introduced in high school.
7.1.2 Apply Newton’s Third Law to design a solution to a problem involving the motion of two colliding objects in a system. Examples could include collisions between two moving objects or between a moving object and a stationary object.
7.1.3 Construct a model using observational evidence to describe the nature of fields that exist between objects that exert forces on each other even though the objects are not in contact. Emphasize the cause and effect relationship between properties of objects (such as magnets or electrically-charged objects) and the forces they exert.
7.1.4 Collect and analyze data to determine the factors that affect the strength of electric and magnetic forces. Examples could include electromagnets, electric motors, or generators. Examples of data could include the effect of the number of turns of wire on the strength of an electromagnet, or of increasing the number or strength of magnets on the speed of an electric motor.
7.1.5 Engage in argument from evidence to support the claim that gravitational interactions within a system are attractive and dependent upon the masses of interacting objects. Examples of evidence for arguments could include mathematical data generated from various simulations.
pg 4 (1:00) Earthquake damage (silent)
pg 6 – website – animations of earthquake terms
pg 12 (1:01) California 1906 (computer animation)
pg 18 (:59) Seismograph
pg 4 (3:20) What is Matter?
pg 8 – website – pitch drop experiment (longest running experiment)
pg 10 – website – types of matter
pg 12 (3:13) uniform circular motion
pg 16 – website rubber bands experiment – potential and kinetic energy
pg 18 (5:22) Nye – simple machines demonstration
pg 26 (3:26) James Clark Maxwell- Electricity and magnetism
pg 28 – website – (2:42) Fossil Fuels
pg 30 – website – (:59) Speed of sound explained
pg 40 (1:56) carbon dating
pg 4 (3:53) Bill Nye
pg 10 (1:59) Airplane taking off and landing
pg 14 – website – (4:25) Lego – Newton’s laws
pg 18 – slideshow – bridge forces
pg 20 (6:39) Career – Physicist
pg 4 (1:45) gravity – animated
pg 6 – slideshow – gravity
pg 8 (3:00) Brushing teeth of space
pg 12 (3:04) Plants and gravity
8 (1:30) Hailstorm
pg 10 – website – disappearing glaciers
pg 12 (2:10) about glaciers
pg 14 – website – Landforms from glaciers
4 (2:41) Basics of magnets
pg 8 (5:11) Magnetic field (animated)
pg 8 – website -Earth’s magnetic field is weakening
pg 10 (4:49) About magnetism
pg 10 – document – Reversal of earth’s poles coming
pg 14 (4:31) Playing with magnets
pg 16 (43:33) Binary code and magnetism
pg 24 (4:42) Electric guitars
pg 30 (3:47) Elevators
pg 36 – document – Driverless cars
pg 20 – website – about vectors
pg 22 – website (7:16) Newton’s Laws on the International Space Station
pg 4 (2:07) Launching a rocket (thrust/chemistry)
pg 8 (3:20) Launching Space Shuttle Discovery
pg 12 (1:33) Launching Delta rocket