DT

Question 1

Linear motion

Answer 1

Linear motion is one motion along a strait line between two points.

An example of linear motion is an athlete running 100m along a straight track.
Linear motion is the most basic of all motion.

Question 2

Rotary motion

Answer 2

For a rotary motion the speed of that movement is constant.

A gymnast swinging on the rings is an example of rotary motion.

Question 3

Reciprocating motion

Answer 3

An example of Reciprocating motion is an internal combustion engine.

Question 4

Oscillating motion

Answer 4

Oscillating motions are motions that get repeated in which an object repeats the same movement over and over.

Question 5

First class lever

Answer 5

In a first class lever, the fulcrum is located between the load and the effort. If the fulcrum is closer to the load, then less effort is needed to move the load a shorter distance. If the fulcrum is closer to the effort, then more effort is needed to move the load a greater distance.

Question 6

Second class lever

Answer 6

In a second class lever, the load is located between the effort and the fulcrum. If the load is closer to the fulcrum than the effort, then less effort will be required to move the load. If the load is closer to the effort than the fulcrum, then more effort will be required to move the load.

Question 7

Third class lever

Answer 7

A third-class lever is another example of a simple machine comprising a beam placed upon a fulcrum. The third-class lever differs from the second-class lever in that the distribution of forces is changed in relation to the fulcrum

Question 8

Tension Force

Answer 8

The tension force is defined as the force that is transmitted through a rope, string or wire when pulled by forces acting from opposite sides. The tension force is directed over the length of the wire and pulls energy equally on the bodies at the ends.