Machines 2º

Simple machines are

• lever, pulley and ramp.

• Telephone, bus and dishwasher.

Compound machines consist of

• two or more simple machines
• no simple machines

Types of energy

• Human power, electricity and fuel.

• Math, science, history, English
• Solid, liquid, gas, plasma

Renewable energy sources:

• Electricity, diesel, gasoline
• Sun, wind and water.

• Nuclear, fossil fuels, petroleum
• Coal, oil, natural gas

Non-renewable energy sources:

• Hydropower
• Wind and sun energy

• Gas, Oil and coal.

• Fossil fuels

What type of energy use?

• Solar energy
• Wind energy
• Electricity

• Nuclear energy

What type of energy use?

• Solar energy
• Nuclear energy
• Wind energy
• Fuel energy

What type of energy use?

• solar energy

• Human power

• nuclear energy

Is it renewable energy or non-renewable energy?

• Renewable energy
• Artificial energy
• Hybrid energy
• Non-renewable energy

Is it renewable energy or non-renewable energy?

• Renewable energy
• Energy from fossil fuels
• Partially renewable energy
• Non-renewable energy