Simple and Complex Machines

Grade 5 Science: Simple and Complex Machines 2

Multiple Choice

A complex machine is...

• the same as a single simple machine.

• two simple machines only

• two or more simple machines

• four simple machines

Multiple Choice

Which of these is an example of a complex machine?

Multiple Choice

Which of these is NOT a part of a lever?

• load

• fulcrum

• hinge

• effort

Multiple Choice

In a lever the object being moved is called the ...

• load

• fulcrum

• effort

• weight

Multiple Choice

The force needed to move the load is called the...

• work

• load

• effort

• fulcrum

Multiple Choice

The central point or pivot of is also called the...

• fulcrum

• effort

• load

• rigid

Multiple Choice

TRUE or FALSE: The further the load is from the fulcrum the easier it is the move the load.

• TRUE

• FALSE

Multiple Choice

A pair of scissors is an example of a ...

• wedge

• inclined plane

• lever

• wheel and axle

You can send your drawings after school today.

Multiple Choice

The diagram shows a crowbar being used to lift a rock. Use it to answer the question below.

Which provides an explanation of how the crowbar works?

• When the load is applied to A, the crowbar turns at the effort at B which causes the fulcrum at C to be raised.

• When the load is applied to A, the crowbar turns at the fulcrum at B which causes the effort at C to be raised.

• When the effort is applied to A, the crowbar turns at the fulcrum at B which causes the load at C to be raised.

• When the effort is applied to A, the crowbar turns at the fulcrum at B which causes the effort at C to be raised.

Multiple Choice

The diagram shows some tools placed into two groups. Use the diagram to answer the question below.

Which tool does NOT belong to each group?