Forces - Home - West Johnston High School
... ▫ All forces act in pairs. Force pairs do not act on the same object and therefore do not cancel out. #1 Reason why you should not get in a fight… Action: You punch someone in the face. Reaction: The face exerts an equal force back on your hand. ...
... ▫ All forces act in pairs. Force pairs do not act on the same object and therefore do not cancel out. #1 Reason why you should not get in a fight… Action: You punch someone in the face. Reaction: The face exerts an equal force back on your hand. ...
Lecture 22 - LSU Physics
... How much work do you do on sphere B ? How much work is done by the gravitational force? ...
... How much work do you do on sphere B ? How much work is done by the gravitational force? ...
Chapter 11: Circular Motion
... 2. Describe the following quantities as they relate to uniform circular motion: speed, velocity, acceleration, force(i.e. constant, changing, direction?) 3. What quantities determine centripetal acceleration? 4. What quantities determine centripetal force? How is it defined? 5. Give examples of cent ...
... 2. Describe the following quantities as they relate to uniform circular motion: speed, velocity, acceleration, force(i.e. constant, changing, direction?) 3. What quantities determine centripetal acceleration? 4. What quantities determine centripetal force? How is it defined? 5. Give examples of cent ...
Concept Summary
... o Acceleration of a freely falling body called acceleration due to gravity Magnitude at Earth’s surface = g = 9.80 m/s2 = 32.3 ft/s2 Always directed downward toward center of the Earth o In absence of air resistance, book and feather fall with same acceleration and land at same time o Any object ...
... o Acceleration of a freely falling body called acceleration due to gravity Magnitude at Earth’s surface = g = 9.80 m/s2 = 32.3 ft/s2 Always directed downward toward center of the Earth o In absence of air resistance, book and feather fall with same acceleration and land at same time o Any object ...
Chapter 13
... Velocity vs Frequency and Wavelength • The velocity of a wave can be found very simply by remember what velocity is measuring. – distance over time ...
... Velocity vs Frequency and Wavelength • The velocity of a wave can be found very simply by remember what velocity is measuring. – distance over time ...
PhysCh7.78
... • Acceleration directed toward the center of a circular path • Although an object is moving at a constant speed, it can still have an acceleration. • Velocity is a vector, which has both magnitude and DIRECTION. • In circular motion, velocity is constantly changing direction. ...
... • Acceleration directed toward the center of a circular path • Although an object is moving at a constant speed, it can still have an acceleration. • Velocity is a vector, which has both magnitude and DIRECTION. • In circular motion, velocity is constantly changing direction. ...
Motion & Forces
... • Displacement is the distance and direction of an object's change in position from a reference point. • Suppose a runner jogs to the 50-m mark and then turns around and runs back to the 20-m mark. • The runner travels 50 m in the original direction (north) plus 30 m in the opposite direction (south ...
... • Displacement is the distance and direction of an object's change in position from a reference point. • Suppose a runner jogs to the 50-m mark and then turns around and runs back to the 20-m mark. • The runner travels 50 m in the original direction (north) plus 30 m in the opposite direction (south ...
Document
... 5. The coordinate of an object is given as a function of time by x = 4t 2 - 3t3 , where x is in meters and t is in seconds. Its average acceleration over the interval from t = 0 to t = 2s is: 6. Starting at time t = 0, and object moves along a straight line with velocity in m/s given by v(t) = 98 - ...
... 5. The coordinate of an object is given as a function of time by x = 4t 2 - 3t3 , where x is in meters and t is in seconds. Its average acceleration over the interval from t = 0 to t = 2s is: 6. Starting at time t = 0, and object moves along a straight line with velocity in m/s given by v(t) = 98 - ...
FORCES:
... Friction is a force that opposes the motion of two objects that are touching each other. It does this by creating temporary electromagnetic forces between the contact points of the two surfaces. Friction acts in a direction parallel to the surfaces in contact and opposing the motion. The force exert ...
... Friction is a force that opposes the motion of two objects that are touching each other. It does this by creating temporary electromagnetic forces between the contact points of the two surfaces. Friction acts in a direction parallel to the surfaces in contact and opposing the motion. The force exert ...
Applications of Newton`s first law of motion
... An object at rest must have no net force on it. If it is sitting on a table, the force of gravity is still there; what other force is there? The force exerted perpendicular to a surface is called the normal force. It is exactly as large as needed to balance the force from the object. N ...
... An object at rest must have no net force on it. If it is sitting on a table, the force of gravity is still there; what other force is there? The force exerted perpendicular to a surface is called the normal force. It is exactly as large as needed to balance the force from the object. N ...
7th grade Knowledge Map 2012-2013 Chapter 1 – Scientific
... 122. There are four types of friction; sliding friction, static friction, fluid friction and rolling friction. 123. Gravity is the force of attraction between two objects that is due to their masses. 124. Inertia is the tendency of all objects to resist any change in motion. 125. Newton’s first law ...
... 122. There are four types of friction; sliding friction, static friction, fluid friction and rolling friction. 123. Gravity is the force of attraction between two objects that is due to their masses. 124. Inertia is the tendency of all objects to resist any change in motion. 125. Newton’s first law ...
Chapter 8: Rotational Motion of Solid Objects 1. An isolated object is
... 30. A body of rotational inertia 1.0 kg m2 is acted upon by a torque of 2.0 Nm. The angular acceleration of the body will be: A. 0.5 rad/s2. B. 0.5 rev/s2. C. 1.0 rad/s2. D. 2.0 rad/s2. E. 2.0 rev/s2. Answer: D 31. A merry-go-round, having a radius of 2.0 m, is set in motion by students applying a f ...
... 30. A body of rotational inertia 1.0 kg m2 is acted upon by a torque of 2.0 Nm. The angular acceleration of the body will be: A. 0.5 rad/s2. B. 0.5 rev/s2. C. 1.0 rad/s2. D. 2.0 rad/s2. E. 2.0 rev/s2. Answer: D 31. A merry-go-round, having a radius of 2.0 m, is set in motion by students applying a f ...
Work and Energy_ppt_RevW10
... • First Law: Objects continue their state of motion (rest or constant velocity) unless acted upon by a net external force. • Second Law: The action of a net external force on an object is to cause its momentum to change with time. For objects with a constant mass this can be written as F = ma. • Thi ...
... • First Law: Objects continue their state of motion (rest or constant velocity) unless acted upon by a net external force. • Second Law: The action of a net external force on an object is to cause its momentum to change with time. For objects with a constant mass this can be written as F = ma. • Thi ...
