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Daily TAKS Connection: Newton’s Laws Motion, Work and Power. IPC(4): The student knows concepts of force and motion evident in everyday life. The student is expected to:. The student is expected to:
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Daily TAKS Connection:Newton’s Laws Motion, Work and Power IPC(4): The student knows concepts of force and motion evident in everyday life. The student is expected to:. The student is expected to: (A) calculate speed, momentum, acceleration, work, and power in systems such as in the human body, moving toys, and machines. (B) investigate and describe applications of Newton’s Laws such as in vehicle restraints, sports activities, geological processes, and satellite orbits.
Construct a three flap foldable Materials: Foldable handout Scissors Pen Colored pencils/crayons Instructions: Fold bottom paper along fold line at bottom edge Color flap “Newton’s Laws” Hotdog fold along center fold line Cut along the dotted lines from edge to peak Tuck the flaps into the bottom flap Color flap labels Newton’s Laws Foldable Instructions
Law of Inertia Record the following notes in your foldable under the ‘inertia’ tab • an object at rest will remain at rest unless acted on by an outside force • an object in uniform straight line motion will stay in that uniform straight line motion unless acted on by an outside force
Question 1 Safety restraints in cars help prevent passenger injuries that would otherwise occur as a result of passengers remaining in motion during a car’s abrupt stop. Which of these laws predicts that an unrestrained moving body will continue to move? A. Law of inertia B. Law of reflection C. Law of universal gravitation D. Law of conservation of momentum
Question 2 A wet bar of soap slides 1 meter across a wet tile floor without appearing to slow down. Which of these statements explains why the bar of soap fails to slow down? A. A constant force on an object produces a constant positive acceleration. B. An object in motion tends to remain in motion in the absence of an external force. C. A moving object having constant velocity contains kinetic energy. D. An object’s weight is proportional to its mass.
F = ma Record the following notes in your foldable under the ‘F = ma’ tab • Using your formula chart, write out Newton’s 2nd law • Rearrange the equation to solve for both mass and acceleration • Record the gravitational force from your formula chart • All objects are affected by gravity • The effect of gravity increases the closer two objects are to one another • All objects fall at the same rate (gravity); however, air resistance (an opposing force) can slow things down
Question 3 Which of these would cause the gravitational force between Earth and the sun to increase? A. An increase in the length of a day on Earth B. A decrease in the distance between Earth and the sun C. An increase in the number of planets orbiting the sun D. An increase in the masses of Earth and the sun
Question 4 How many newtons of force does a 75.0 kg student exert on their chair because of gravity? (Solve problem in your foldable under F=ma tab)
Question 5 After shooting a cannonball, a cannon recoils with a much lower velocity than the cannonball. This is primarily because, compared to the cannonball, the cannon has a - A. much greater mass C. greater kinetic energy B. smaller amount of momentum D. smaller force applied to it
Question 6 A leaf from an apple tree falls to the ground more slowly than an apple falls. As an explanation of this observation, the ancient Greeks’ theory of natural place has been replaced by a more recent theory involving gravitational force and — A. atomic weight B. inertial mass C. air resistance D. kinetic energy
Action/Reaction Record the following notes in your foldable under the ‘action/reaction forces’ tab • For every action there is an equal and opposite reaction • action and reaction in Newton's third law are forces • An action-reaction pair includes only two objects
Question 7 Which of the these is the best description of the action-reaction force pair when the space shuttle lifts off from the launchpad? A. The ground pushes the rocket up while exhaust gases push down on the ground. B. Exhaust gases push down on air while the air pushes up on the rocket. C. The rocket pushes exhaust gases down while the exhaust gases push the rocket up. D. Gravity pulls the exhaust gases down while friction pushes up against the atmosphere.
Formulas Foldable Instructions Construct a folded book foldable a Materials: Foldable handout (2 pages) Scissors Pen Colored pencils/crayons Formula chart Instructions: Hamburger fold the foldable handouts Cut 2 cm slits from the edges of the fold of the handout that has page 2 (as marked) Cut along the fold line of the other sheet of paper beginning and ending about 2 cm from each end (as marked). Burrito fold and insert paper from step 2 into the hole and open, forming a book.
