Physics Chapter 1-3 Review
... The reluctance of any object to change its state of motion. Mass is the measure of inertia ...
... The reluctance of any object to change its state of motion. Mass is the measure of inertia ...
Unit Exam
... Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time to stop? A The car with the smaller mass will require less force to stop than the car with the larger mass. B The car with the larger mass will mainta ...
... Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time to stop? A The car with the smaller mass will require less force to stop than the car with the larger mass. B The car with the larger mass will mainta ...
File - We All Love Science
... • Inertia: the tendency of a body at rest to stay at rest, or a body in motion to keep moving in a straight line at a constant speed. • Galileo’s experiment • Newton’s first law of motion: a body continues in a state of rest or motion in a straight line at a constant speed unless made to change that ...
... • Inertia: the tendency of a body at rest to stay at rest, or a body in motion to keep moving in a straight line at a constant speed. • Galileo’s experiment • Newton’s first law of motion: a body continues in a state of rest or motion in a straight line at a constant speed unless made to change that ...
Chapter 7
... The tangential component of the acceleration is due to changing speed The centripetal component of the acceleration is due to changing direction Total acceleration can be found from ...
... The tangential component of the acceleration is due to changing speed The centripetal component of the acceleration is due to changing direction Total acceleration can be found from ...
Physical Science Chapter 2
... During this collision the speed of both box cars changes. The total momentum remains constant before & after the collision. The masses of both cars is the same so the velocity of the red car is transferred to the ...
... During this collision the speed of both box cars changes. The total momentum remains constant before & after the collision. The masses of both cars is the same so the velocity of the red car is transferred to the ...
Chapter 10 Lesson 2
... for the 2-kg mass in the previous problem? (A = 12 cm, k = 400 N/m) The maximum acceleration occurs when the restoring force is a maximum; i.e., when the stretch or compression of the spring is largest. F = ma = -kx ...
... for the 2-kg mass in the previous problem? (A = 12 cm, k = 400 N/m) The maximum acceleration occurs when the restoring force is a maximum; i.e., when the stretch or compression of the spring is largest. F = ma = -kx ...
PHYS 100 Introductory Physics Sample Exam 1 Useful Stuff: Section
... a direction that is the same as the train’s direction. With respect to the ground, the ball’s speed is, a. b. c. d. ...
... a direction that is the same as the train’s direction. With respect to the ground, the ball’s speed is, a. b. c. d. ...
Freefall Worksheet
... be summarized in the above table: 1. A bag of sugar has a mass of 1kg. How much does it weigh: 1. on Earth? 2. on Jupiter? 2. Neil Armstrong was the first man to walk on the surface of the Moon. The gravitational acceleration on the Moon is 16 of the gravitational acceleration on Earth, and there is ...
... be summarized in the above table: 1. A bag of sugar has a mass of 1kg. How much does it weigh: 1. on Earth? 2. on Jupiter? 2. Neil Armstrong was the first man to walk on the surface of the Moon. The gravitational acceleration on the Moon is 16 of the gravitational acceleration on Earth, and there is ...
Introduction Worksheet 1
... Astronomical observations indicate that the sun is tracing a circular orbit around the center of our galaxy. The radius of orbit is 2.7 x 1020 m with period T = 200 million years. a) Calculate the total mass of the central stars. b) Assume all of these stars have the same mass as our sun. How many d ...
... Astronomical observations indicate that the sun is tracing a circular orbit around the center of our galaxy. The radius of orbit is 2.7 x 1020 m with period T = 200 million years. a) Calculate the total mass of the central stars. b) Assume all of these stars have the same mass as our sun. How many d ...
Isaac Newton
... of universal gravitation. This gave us the reason why the moon doesn’t fall out of the sky and hit the earth (web 2). This came about through a well-known story; it was on seeing an apple fall in his orchard that Newton conceived that the same force governed the motion of the Moon and the apple (web ...
... of universal gravitation. This gave us the reason why the moon doesn’t fall out of the sky and hit the earth (web 2). This came about through a well-known story; it was on seeing an apple fall in his orchard that Newton conceived that the same force governed the motion of the Moon and the apple (web ...
Modified Newtonian dynamics
In physics, modified Newtonian dynamics (MOND) is a theory that proposes a modification of Newton's laws to account for observed properties of galaxies. Created in 1983 by Israeli physicist Mordehai Milgrom, the theory's original motivation was to explain the fact that the velocities of stars in galaxies were observed to be larger than expected based on Newtonian mechanics. Milgrom noted that this discrepancy could be resolved if the gravitational force experienced by a star in the outer regions of a galaxy was proportional to the square of its centripetal acceleration (as opposed to the centripetal acceleration itself, as in Newton's Second Law), or alternatively if gravitational force came to vary inversely with radius (as opposed to the inverse square of the radius, as in Newton's Law of Gravity). In MOND, violation of Newton's Laws occurs at extremely small accelerations, characteristic of galaxies yet far below anything typically encountered in the Solar System or on Earth.MOND is an example of a class of theories known as modified gravity, and is an alternative to the hypothesis that the dynamics of galaxies are determined by massive, invisible dark matter halos. Since Milgrom's original proposal, MOND has successfully predicted a variety of galactic phenomena that are difficult to understand from a dark matter perspective. However, MOND and its generalisations do not adequately account for observed properties of galaxy clusters, and no satisfactory cosmological model has been constructed from the theory.