Health And Lifestyle, Energy And Energy Transfers

Question 1

Stored energy in a battery is called ____ energy

Answer 1

Chemical

Question 2

Energy stored in a hot cup of cofee is called _____ energy

Answer 2

Thermal

Question 3

The energy in a stretched elastic band is called

Answer 3

Elastic potential

Question 4

Energy in a moving object is called

Answer 4

Kinetic energy

Question 5

What are the 2 main conversions which take place when a torch is in use

Answer 5

1. Chemical energy to electrical energy
2. Electrical energy to Thermal Energy

Question 6

Energy cannot be created or destroyed. Only transfered. What is the law

Answer 6

Law of conservation energy

Question 7

What is the law of conservation energy.

Answer 7

Energy cannot be created or destroyed, only transferred

Question 8

What is convection?

Answer 8

Convection is the transfer of thermal energy throught the movement of a liquid or gas

Question 9

What is the transfer of thermal energy throught the movement of a liquid or gas?

Answer 9

Convection

Question 10

What is conduction?

Answer 10

The transfer of thermal energy through direct contact.

Question 11

What is the transfer of thermal energy through direct contact?

Answer 11

Conduction

Question 12

What is radiation?

Answer 12

The transfer of heat energy through space by electromagnetic radiation

Question 13

What is the transfer of heat through space by electromagnetic radiation?

Answer 13

Radiation

Question 14

Examples of radiation

Answer 14

Ultraviolet light from the sun
Heat from stove burner
Visible light from a candle

Question 15

Examples of conduction?

Answer 15

When you touch an ice cube(direct contact) this causes the heat from your hand to be transferred to the ice cube. Then the ice cube melts.

Ironing of clothes is when the heat is conducted from the iron to the clothes

Question 16

Examples of convection

Answer 16

Hot air rising above a fire
Ice melting(heat moves from the ice to air)

Question 17

Suggest one disadvantage of using wind to generate electricity

Answer 17

The wind turbines are intermittent meaning that it relies on the weather and wind.

Question 18

Glucose is absorbed in the small intestine. What carries glucose from the intestone to other parts of the body?

Answer 18

The bloodstream

Question 19

Whrere is glucose absorbed

Answer 19

The small intestine

Question 20

Why do you take glucose?

Answer 20

To provide energy.

Question 21

Eating to much fat is bad for you. Give one reason for this

Answer 21

Increased risk of obesity. A risk factor for cardiovascular disease( mainly heart disease and stroke).

Question 22

Eating too little fat is bad for you. Give one reason for this

Answer 22

If you are underweight, you may be at greater risk of certain health conditions. This could be decreased muscle scrength and lowered immunity.

Question 23

What is the equation for work done?

Answer 23

Work done(J)= Distance(M) x Force(N)

Question 24

All objects ___ and ___ infared radiation
.

Answer 24

All objects EMIT and ABSORB infared radiation

Question 25

What describesdescribes how steroids work

Answer 25

Used to increase muscle growth

Question 26

What is a nutrient

Answer 26

A chemical compound (such as protein, fat, carbohydrate, vitamin, or mineral) contained in foods. These compounds are used by the body to function and grow.