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Worksheets

PLTW

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is a drive gear

a)

A push or pull

b)

The member of a pair of gears to which motion and power are transmitted by the other gear. The output gear.

c)

A pish or pull in a circular direction. A twisting force.

d)

A term to describe the proper engagement of teeth between two or more gears in a gear chain

2.

What is a mechanism

a)

The part of the machine which contains two or more pieces arranged so that th motion of one compets the motion of the others

b)

A push or pull

c)

A push or pull in a circular direction. A twistinf force.

d)

something added to a system, such as resources, in order to achive a result.

3.

What is a force

a)

Something added to a system, such as resorces, in order to achive a result.

b)

A pull or push in a circular direction. A twisting force.

c)

A pull or push

d)

A term used to describe the proper en

4.

Torque

a)

Something added to a system, such as resources, in order to achieve a result.

b)

The part of a machine which contains two or more pieces arranged so that the motion of one compels the motion of the others.

c)

The member of a pair of gears to which motion and power are transmitted by the other gear. The output gear

d)

a push or pull in a circular direction. A twisting force.

5.

What is a gear

a)

The capacity to do work; the use of mechanisms is necessary to transfer energy.

b)

Something added to a system, such as resources, in order to achieve a result.

c)

A toothed wheel that works with others to alter the relation between the speed of an engine and the speed of the driven parts.

d)

The results of the operation of any system.

6.

Input

a)

A back and forth movement in a straight line.

b)

Something added to a system, such as resources, in order to achieve a result.

c)

Opposite in position, direction, order or effect.

d)

The Input handle can be turned in both directions for at least one full turn

7.

Meshing

a)

The capacity to do work; the use of mechanisms is necessary to transfer energy.

b)

Opposite in position, direction, order or effect.

c)

The results of the operation of any system.

d)

A term used to describe the proper engagement of teeth between two or more gears in a gear train.

8.

Reciprocating

a)

A back and forth movement in a straight line.

b)

A swing back and forth in an arc at a regular rate.

c)

Opposite in position, direction, order or effect.

d)

The ratio of the speed of the driving member of a gear train to that of the driven member.

9.

What is a driven gear

a)

The Input handle can be turned in both directions for at least one full turn

b)

The capacity to do work; the use of mechanisms is necessary to transfer energy.

c)

The member of a pair of gears to which motion and power are transmitted by the other gear. The output gear.

d)

The application of force that moves an object a certain distance.

10.

What is energy

a)

The capacity to do work; the use of mechanisms is necessary to transfer energy.

b)

The Input handle can be turned in both directions for at least one full turn

c)

The quantitative relation between two amounts showing the number of times one value contains or is contained within the other.

d)

Circular movement

11.

Direction of Travel

a)

The ratio of the speed of the driving member of a gear train to that of the driven member.

b)

The results of the operation of any system.

c)

The Input handle can be turned in both directions for at least one full turn

d)

The application of force that moves an object a certain distance.

12.

Output

a)

Opposite in position, direction, order or effect.

b)

The application of force that moves an object a certain distance.

c)

The ratio of the speed of the driving member of a gear train to that of the driven member.

d)

The results of the operation of any system.

13.

Work

a)

Opposite in position, direction, order or effect.

b)

The application of force that moves an object a certain distance.

c)

The ratio of the speed of the driving member of a gear train to that of the driven member.

d)

If you can make the input shaft turn by turning the output shaft the flow of power is reversible. If the input shaft does not turn or only turns part of the way, the power is non-reversible

14.

Inverse

a)

A gear between the driver and the driven gear used to change rotational direction.

b)

The quantitative relation between two amounts showing the number of times one value contains or is contained within the other.

c)

Opposite in position, direction, order or effect.

d)

A swing back and forth in an arc at a regular rate.

15.

Ratio

a)

A gear between the driver and the driven gear used to change rotational direction.

b)

The ratio of the speed of the driving member of a gear train to that of the driven member.

c)

If you can make the input shaft turn by turning the output shaft the flow of power is reversible. If the input shaft does not turn or only turns part of the way, the power is non-reversible

d)

The quantitative relation between two amounts showing the number of times one value contains or is contained within the other.

16.

Oscillating

a)

A swing back and forth in an arc at a regular rate.

b)

If you can make the input shaft turn by turning the output shaft the flow of power is reversible. If the input shaft does not turn or only turns part of the way, the power is non-reversible

c)

Circular movement

d)

A gear between the driver and the driven gear used to change rotational direction.

17.

Rotary

a)

If you can make the input shaft turn by turning the output shaft the flow of power is reversible. If the input shaft does not turn or only turns part of the way, the power is non-reversible

b)

Circular movement

c)

The ratio of the speed of the driving member of a gear train to that of the driven member.

d)

A gear between the driver and the driven gear used to change rotational direction.

18.

Gear Ratio

a)

A gear between the driver and the driven gear used to change rotational direction.

b)

The ratio of the speed of the driving member of a gear train to that of the driven member.

c)

The quantitative relation between two amounts showing the number of times one value contains or is contained within the other.

d)

Opposite in position, direction, order or effect.

19.

Flow of power

a)

A push or pull in a straight line

b)

The member of a pair of gears to which motion and power are transmitted by the other gear. The output gear

c)

The member of a pair of gears to which motion and power are transmitted by the other gear. The output gear.

d)

If you can make the input shaft turn by turning the output shaft the flow of power is reversible. If the input shaft does not turn or only turns part of the way, the power is non-reversible

20.

Idler gear

a)

A gear between the driver and the driven gear used to change rotational direction.

b)

A toothed wheel that works with others to alter the relation between the speed of an engine and the speed of the driven parts.

c)

The member of a pair of gears to which motion and power are transmitted by the other gear. The output gear.

d)

The results of the operation of any system.