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Aims of this worksheet: Practicing substituting numbers into equations. Practicing using maths in physics. Instructions: Use g = 10ms 2 for this worksheet. (a) State the formula relating gravitational potential energy, height, mass and gravity. mark) (b) State the formula relating kinetic energy, mass and velocity. (1 mark)
PhET: Masses & Springs http://phet.colorado.edu/en/simulation/mass-spring-lab. This realistic mass-and-spring simulation is a great way to visualize changing kinetic and potential energy in a spring system. Real-time bar graphs are displayed of KE, Gravitational PE, Elastic PE, and Thermal energy. It's All Uphill http://www.physicsclassroom.
Kinetic Energy KE. Kinetic energy KE, is energy associated with motion. KE = 1⁄2 mv2. where m = mass in kilograms (kg), and v is the speed in m/s. The unit of kinetic energy is the joule (J) If an object’s speed is doubled, then its kinetic energy is quadrupled.
To understand energy and conservation of energy, we must first define some terms: work, kinetic energy (KE), and potential energy (PE). We’ll get to PE in the next Chapter. Let’s look at work and KE. Definition of work done by a force: consider an object moving while a constant force F is applied to the object.
KINETIC AND POTENTIAL ENERGY WORKSHEET. Potential energy: PE = mgh Kinetic energy: KE = 1/2 m v2 Total mechanical energy: ME = PE + KE. Practice problems: 1. A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby weighs 12 Kg. The carriage has ____________ energy. Calculate it.
Determine whether the objects in the following problems have kinetic (KE) or potential energy. (PE). Then, use the appropriate formula to calculate the answer. KE = mass x velocity2 2 PE = m (mass) x g (gravity) x h (height) On Earth, gravity (g) = 9.8 m/s2, so in the formula substitute 9.8 for gravity. 7. You serve a volleyball with a mass of ...
The constant of proportionality k is called Coulomb’s constant. In SI units, the constant k has the value k = 8.99 × 10 9 N ⋅ m 2 /C 2. k = 8.99 × 10 9 N ⋅ m 2 /C 2. The direction of the force is along the line joining the centers of the two objects.
