1 / 9

GPE / KE

GPE / KE. Learning Objective: To know what centripedal force is, and link to GPE + KE C – Describe where force and velocity act in centripedal motion B – Work out where a rollercoaster has centripedal force A* - Work out GPE, KE and centripedal motion. 1-2-3 G RAVITATIONAL

steel-monroe
Download Presentation

GPE / KE

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. GPE / KE • Learning Objective: To know what centripedal force is, and link to GPE + KE C – Describe where force and velocity act in centripedal motion B – Work out where a rollercoaster has centripedal force A* - Work out GPE, KE and centripedal motion

  2. 1-2-3 GRAVITATIONAL POTENTIAL ENERGY • GPE = mass x acceleration of gravity x height. If mass is 10, height = 5 and gravity is 10, what is the GPE? • At the bottom of a fall, whattype of energy does GPE turn into? • How can you work out acceleration?

  3. Centripetal force.. • THIS IS THE DIRECTION OF THE VELOCITY THIS IS THE DIRECTION OF THE FORCE The ball is kept in its path by the tension in the string – an example of a CENTRIPETAL FORCE.

  4. Orbits Electrons • Centripetal force.. • THIS IS THE DIRECTION OF THE VELOCITY THIS IS THE DIRECTION OF THE FORCE The bunsenis kept in its path by the tension in the tubing – an example of a CENTRIPETAL FORCE.

  5. Orbits Electrons • For these examples, draw and label how the velocity and centripetal force changes • Why is this a vector not a scalar? • What force is the centripetal force in each? • Give 2 other examples of centripetal forces • Explain centripetal force in your own words • Assuming the velocity doesn’t increase, is there an acceleration or not? • What direction does momentum act? • What direction does acceleration act?

  6. Orbits Electrons • If this is the answer, what is the question? • Acts inwards • It has direction • In different directions

  7. Design a rollercoaster • Include some loop the loops! • Work out GPE - Use 10g as the mass (turn it into 0.01kg), and g=10 m/s2 • Ext: Work out acceleration both times, assuming it starts at 0m/s at the top, and by timing its fall • EXT 2: Using 15N as force, calculate work done as it falls

  8. On your paper design yours/a rollercoaster, including heights. You must have 2 drops For each loop, work out GPE and KE, using mass as 50g (0.05kg) . Best name wins sweets! Using working, draw a Velocity/time graph for each loop Label the work done (if force is 15N) Label centripetal force and velocities EXT: How much other physics can you include on it? E.g. Terminal velocity..

  9. Gallery. Questions 17-18, 25-29, 37-40 Write one of your own on the post-it

More Related