Know that friction (drag) acts on an object moving through a gas (e.g. air resistance) Define the spring constant as force per unit extension; recall and use the equation Define and use the term ‘limit of proportionality’ for a load–extension graph and identify this point on the graph...
The extension–load graph for a spring is shown. The unstretched length of the spring is 17.0 cm. A satellite orbits the Earth in an anticlockwise direction at constant speed, as shown. When the satellite is in the position shown, in which direction does the resultant force act upon it?
10. Interpret extension/load graphs. 解释伸长量/负荷的图象。 11. State Hooke’s Law and recall and use theexpression F = k x. 说明胡克定律并记住使用F=kx。 12. Recognize the significance of the term 'limitof proportionality' for an extension/loadgraph.从伸长量/负荷图像中辨认出正比例限度。
6. Define the spring constant as force per unit extension; Define and use the term ‘limit of proportionality’ for a load–extension graph and identify this point on the graph (an understanding of the elastic limit is not required). 7. Define momentum as mass x velocity; Define impulse as...
11、ion/load graphs.解释伸长量/负荷的图象。11. State Hooke ' s Law anchHeand use the expression F = k x.说明胡克定律并记住使用F=kx。12. Recognize the significance of the term 'limit of proportionality' for an extension/load graph.从 伸长量/负荷 图像中辨认出正比例限度。13. Recall and...
extension-load graphs • State Hooke’s Law and recall and use the and describe the associated experimental expression F = kx, where k is the spring procedure constant • Recognise the significance of the ‘limit of proportionality’ for an extension-load graph • Describe the ways in ...
from (b) [Total: 7] 2 (a) (i) Hooke’s Law B1 [1] (ii) straight line (graph) / constant gradient B1 through origin/(0,0) B1 [2] ignore through zero ignore extension proportional to load (b) curved extension to graph with increasing gradient, condone decreasing NOT if any part ...
11 = 8 cm Page 22 4 a) Q = elastic limit b) The extension is directly proportional to the force applied c) In the region QR, the extension is greater for the same increase in applied force d) k = F/x = gradient of graph = 8/x = 4 N/m 5 c) Extension = 67 – 40 = 27...
which load and extension are no longer proportional • Elastic limit: point at which the spring will not return to its original shape after being stretched = × = CIRCULAR MOTION • An object at steady speed in circular orbit is always accelerating as its direction is changing, but it...
10. Interpret extension/load graphs. 解释伸长量/负荷的图象。 11. State Hooke’s Law and recall and use theexpression F = k x. 说明胡克定律并记住使用F=kx。 12. Recognize the significance of the term 'limitof proportionality' for an extension/loadgraph.从伸长量/负荷图像中辨认出正比例限度。