Y10 Engineering general knowledge

Static loading is a load that doesn't change over time. In engineering, static loads tend to be better defined and require less of a safety factor on them then dynamic loading. Which of the options does not refer to a static load?

• A bridge

• A moving car

• A crane

• A parked vehicle

Dynamic loads or forces are loads that ...... Select the correct statement.

• that have changed in hither size, position or direction.

• that have increased in size and changed position

• that have changed position and direction

• that have only changed in size.

The tension force ...

• is directed over the length of the wire and pulls energy equally on the bodies at the ends

• is represented by unaligned forces pushing one part of a body in one specific direction, and another part of the body in the opposite direction.

• is the force that is transmitted through a rope, string or wire when pulled by forces acting from opposite sides.

• is created when one part of the surface is pushed in one direction, while another part of the surface is pushed in the opposite direction.

A compression force or compressive force

• occurs when a physical force presses inward on an object, causing it to become compacted

• occurs when a force cause an object to twist.

• occurs when a force cause an object to stretch in opposite directions.

• is the application of power, pressure, or exertion against an object that causes it to become squeezed, squashed, or compacted. Like the force acting on columns.

Shear force

• occurs when one part of the surface is pushed in one direction, while another part of the surface is pushed in the opposite direction

• occurs when the two opposing forces are pushing into each other at the same point.

• is when two parts of an object are pushed in different directions, for example, when a piece of paper is cut by scissors.

• is a twisting force that is applied on an object by twisting one end when the other is held in position or twisted in the opposite direction.

Torsion

• occurs when an object swings left and then right (or vise-versa), from a fixed point. A very good example of this is a classic pendulum clock.

• is a repetitive movement left to right OR up and down. A good example of this type or motion is a piston, such as found in an engine.

• is a twisting force that is applied on an object by twisting one end when the other is held in position or twisted in the opposite direction.

Select what types of motion you see in the picture

• oscillating

• linear

• reciprocating

• rotary

Pick the right label for these motion symbols

• circulatory

• rotary

• unidirectional

• linear

• concentric

Which of these objects perform a reciprocating motion?

• The locomotive

• The piston engine

• The bicycle wheel

• The pendulum clock

Which of these object perform an a oscillating motion?

• The bicycle wheel

• The engine piston

• The locomotive

• The pendulum clock