Science Test: Gas Laws, Hydraulics/Pneumatics, Gravity/Weight, Work/Energy - Knowledge and Understanding. Jan 15th

Question 1

This “As the temperature of a gas increases, the volume will increase by a proportional amount.
- Increase, increase” is what gas law?

Answer 1

Charles’ Law

Question 2

This “As the pressure of a gas increases, the volume decreases by a proportional amount.
- Increase, decrease“ is what gas law?

Answer 2

Boyle’s Law

Question 3

This “an increase in pressure at any point in a confined, incompressible fluid is transmitted throughout the fluid in all directions. The increase in pressure occurs everywhere within the fluid.

• If the area of an output piton increases then the force will increase by the same amount. (Proportional relationship.)
• Increase, occurs everywhere.
• Increase, increase.” is what hydraulic/pneumatic principle?

Answer 3

Pascal’s Principle

Question 4

This “- Input / output system
- Input force is applied to the piston, which transfers force through an
incompressible fluid, to the output piston
- Incompressible
- Travels slower (viscosity of the fluid)
- No delay in action
- No change across long distances” describes what systems?

Answer 4

Hydraulic Systems

Question 5

This
“- Input / output system
- Input force is applied to the piston, which transfers force through a
compressible fluid, to the output piston
- Compressible
- Travels faster (viscosity of the fluid)
- Delay in action
- Changes in output based on distance the fluid travels, fluid can compress” describes what systems?

Answer 5

Pneumatic Systems

Question 6

What N/Kg is the force of gravity?

Answer 6

9.8N/Kg

Question 7

How do you calculate weight?

Answer 7

Mass x g

Question 8

How do you calculate mass?

Answer 8

w ÷ g

Question 9

How do you calculate gravity?

Answer 9

w ÷ m

Question 10

What is Kinetic Energy?

Answer 10

Moving

Question 11

What is chemical energy?

Answer 11

Energy stored/released in a chemical reaction

Question 12

What is thermal energy?

Answer 12

Heat

Question 13

What is electromagnetic/radiant energy?

Answer 13

Electricity, light

Question 14

What is potential energy?

Answer 14

Stored Energy

Question 15

What is gravitational energy?

Answer 15

Gravity

Question 16

What is mechanical energy?

Answer 16

Machines

Question 17

What is force applied to an object over a distance travelled?

Answer 17

Work

We understand energy as the capacity/ability to do Work.

Question 18

How is work calculated?

Answer 18

W=Fxd

Question 19

What is this?
“- Machines that make doing work easier.
- Output Force / Input force = M.A.
- No Unit - it is the factor of how much easier it is to use a machine, instead of not using it.”

Answer 19

Mechanical Advantage