Work - Lamar County School District
... How much work does it take to lift a 200 N weight 2 m off the floor? W= 200N(2m)= 400 J How much work does it take to hold a 200 N weight 2 m off the floor? W = 200N(0) = 0 J - The book is not moving so no work. How much work is done if you drop a 2.5 N book 3 meters? W= 2.5N (3m)= 7.5 J What does t ...
... How much work does it take to lift a 200 N weight 2 m off the floor? W= 200N(2m)= 400 J How much work does it take to hold a 200 N weight 2 m off the floor? W = 200N(0) = 0 J - The book is not moving so no work. How much work is done if you drop a 2.5 N book 3 meters? W= 2.5N (3m)= 7.5 J What does t ...
Electric Fields
... – Connect positively charged (lack of electrons) and a negatively charged (excess of electrons) regions by a material that electrons can flow through and electrons move from negative to positive until the difference in charge is gone – When electrons move they can do work, this is electricity ...
... – Connect positively charged (lack of electrons) and a negatively charged (excess of electrons) regions by a material that electrons can flow through and electrons move from negative to positive until the difference in charge is gone – When electrons move they can do work, this is electricity ...
L20
... • First used by Galileo to measure time • It is a good timekeeping device because the period (time for a complete cycle) does not depend on its mass, and is approximately independent of amplitude • The pendulum is an example of a harmonic oscillator– a system which repeats its motion over ...
... • First used by Galileo to measure time • It is a good timekeeping device because the period (time for a complete cycle) does not depend on its mass, and is approximately independent of amplitude • The pendulum is an example of a harmonic oscillator– a system which repeats its motion over ...
mapping fields
... What role do electrical generators or batteries have in circuits? A. They are the source of potential energy in a circuit. B. They are the source of electrons that moves through the circuit. C. They control how hard it is for the electricity to pass through a ...
... What role do electrical generators or batteries have in circuits? A. They are the source of potential energy in a circuit. B. They are the source of electrons that moves through the circuit. C. They control how hard it is for the electricity to pass through a ...
CMock exam IV paper 2
... Metal blocks P and Q are of the same initial temperature. The ratio of the mass of P to that of Q is 5 : 1. The ratio of the heat capacity of P to that of Q is 1 : 3. If both blocks absorb the same amount of energy and are then put into good thermal contact, which of the following statements about t ...
... Metal blocks P and Q are of the same initial temperature. The ratio of the mass of P to that of Q is 5 : 1. The ratio of the heat capacity of P to that of Q is 1 : 3. If both blocks absorb the same amount of energy and are then put into good thermal contact, which of the following statements about t ...
Circular Motion (PowerPoint)
... At the top of the hill the track can push upwards or pull downwards depending on the car’s speed. i) If the car travels slowly over the top FN is directed upwards but is a little bit smaller than Fg (down) because the car starts to lift just a little bit off the track because it wants to continue in ...
... At the top of the hill the track can push upwards or pull downwards depending on the car’s speed. i) If the car travels slowly over the top FN is directed upwards but is a little bit smaller than Fg (down) because the car starts to lift just a little bit off the track because it wants to continue in ...
Blank Jeopardy - prettygoodphysics
... the frictional force exerted on the person by the merry-go-round is (A) greater in magnitude than the frictional force exerted on the person by the merry-go-round (B) opposite in direction to the frictional force exerted on the merry-go-round by the person (C) directed away from the center of the me ...
... the frictional force exerted on the person by the merry-go-round is (A) greater in magnitude than the frictional force exerted on the person by the merry-go-round (B) opposite in direction to the frictional force exerted on the merry-go-round by the person (C) directed away from the center of the me ...
Exam 5 (Fall 2012)
... 2. A point charge A of 5nC near a positive point charge B is moved away from B so that their distance apart becomes twice as much as before. If the charge on A can change, what should it become so that the force becomes attractive and has the same magnitude as before? (a) (b) (c) (d) ...
... 2. A point charge A of 5nC near a positive point charge B is moved away from B so that their distance apart becomes twice as much as before. If the charge on A can change, what should it become so that the force becomes attractive and has the same magnitude as before? (a) (b) (c) (d) ...
Document
... (A) Both forces are attractive. (B) Both forces are repulsive. (C) The gravitational force is repulsive and the electrostatic force is attractive. (D) The gravitational force is attractive and the electrostatic force is repulsive. ...
... (A) Both forces are attractive. (B) Both forces are repulsive. (C) The gravitational force is repulsive and the electrostatic force is attractive. (D) The gravitational force is attractive and the electrostatic force is repulsive. ...
SC 4.2 Force, Motion, and Energy Motion is described by an object`s
... • Mass is the measure of the amount of matter in an object. It is different from weight (a measure of the pull of gravity.) However, if both objects are on earth, mass and weight will measure the same. How is mass related to motion? What is inertia? What is Newton’s 1st Law of Motion? How does this ...
... • Mass is the measure of the amount of matter in an object. It is different from weight (a measure of the pull of gravity.) However, if both objects are on earth, mass and weight will measure the same. How is mass related to motion? What is inertia? What is Newton’s 1st Law of Motion? How does this ...
Electric Forces, Fields, and Voltage
... (2) Two point charges of 2.00 x 10-7 C and 8.50 x 10-8 C are 12.0 cm apart. (a) What electric field does each produce at the site of the other? (b) What force acts on each charge? (c) Where between them will the electric field be zero? (3) Two equally charged objects 3.20 mm apart are released from ...
... (2) Two point charges of 2.00 x 10-7 C and 8.50 x 10-8 C are 12.0 cm apart. (a) What electric field does each produce at the site of the other? (b) What force acts on each charge? (c) Where between them will the electric field be zero? (3) Two equally charged objects 3.20 mm apart are released from ...
Electric Charges and Fields
... 1. Two charges, q1 and q2, are separated by a distance, d, and exert a force, F, on each other. What new force will exist if a) q1 is doubled b) q1 and q2 are cut in half c) d is tripled d) d is cut in half e) q1 is tripled and d is doubled? 2. How many excess electrons are on a ball with a charge o ...
... 1. Two charges, q1 and q2, are separated by a distance, d, and exert a force, F, on each other. What new force will exist if a) q1 is doubled b) q1 and q2 are cut in half c) d is tripled d) d is cut in half e) q1 is tripled and d is doubled? 2. How many excess electrons are on a ball with a charge o ...