Physics Flashcards
1
Q
Kinetic Energy
A
Energy of motion
2
Q
Heat ENergy
A
Energy of molecules in motion
3
Q
Potential Energy
A
Energy of position with respect to Earth’s surface
4
Q
Sound Energy
A
The disturbance of molecules
5
Q
Free body diagram
A
A diagram showing all the forces acting on an object
6
Q
What causes friction?
A
The irregularities between two surfaces coming into contact.
7
Q
Factors affecting friction
A
-Types of surfaces involved
-Amount of contact between two surfaces
-Amount of force acting on the two surfaces
8
Q
Reaction distance
A
The distance travelled after the obstacle has been observed but prior to the brakes being applied.
9
Q
Road conditions & their frictional constants
A
Dry - 0.06
Wet - 0.1
Snow & Ice - 0.15
