10 Questions
Heat energy from the Sun makes things cold.
False
Rubbing things together can produce heat.
True
Windmills turn electrical energy into wind energy.
False
Heat energy can be used to cook food.
True
Satellite dishes send pictures from TVs to space.
False
Heat is an energy that makes things cold.
False
Windmills turn wind energy into electricity.
True
Satellite dishes receive energy from space to make pictures on TVs.
True
People use heat energy to cool their homes.
False
Rubbing things together is a way to produce heat energy.
True
Study Notes
Routines
- Attendance, 5S, Exercise are important routines
- These routines are essential for a productive and organized work plan
Simple Machines
- A simple machine is a tool that changes the size or direction of a force
- Simple machines can make work easier
- There are six types of simple machines: Lever, Ramp, Wheel and Axle, Pulley, Screw, and Wedge
Lever
- A lever is a bar that moves against an unmoving point called a fulcrum
- Examples of levers include shovels and seesaws
Ramp
- A ramp is a surface that is straight and slanted
- Ramps can be used to move an object from one place to another
Wheel and Axle
- A wheel and axle is made up of a wheel and a bar, or axle
- The bar is connected to the center of the wheel
Pulley
- A pulley is a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim
- Pulleys can be used singly or in combination to transmit energy and motion
Screw
- A screw is a short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head
- Screws are used to join things together by being rotated so that it pierces wood or other material and is held tightly in place
Wedge
- A wedge is a piece of a substance that tapers to a thin edge and is used for splitting wood and rocks, raising heavy bodies, or for tightening by being driven into something
- Examples of wedges include shovels, knives, axes, pickaxes, saws, needles, scissors, and ice picks
- Wedges can also be used to hold things together, such as staples, push pins, tacks, nails, doorstops, or shims
Energy
- Energy is what makes things work and change
- There are many different forms of energy, including heat, light, sound, and electricity
- Energy can be obtained from food, gasoline, wind, and the Sun
- We use different forms of energy every day
Heat
- Heat is an energy that makes things warm
- Heat can be obtained from burning things like wood, oil, or gas
- People use heat to warm their homes and cook food, which kills bacteria that can harm humans
Routines
- Attendance, 5S, Exercise are important routines
- These routines are essential for a productive and organized work plan
Simple Machines
- A simple machine is a tool that changes the size or direction of a force
- Simple machines can make work easier
- There are six types of simple machines: Lever, Ramp, Wheel and Axle, Pulley, Screw, and Wedge
Lever
- A lever is a bar that moves against an unmoving point called a fulcrum
- Examples of levers include shovels and seesaws
Ramp
- A ramp is a surface that is straight and slanted
- Ramps can be used to move an object from one place to another
Wheel and Axle
- A wheel and axle is made up of a wheel and a bar, or axle
- The bar is connected to the center of the wheel
Pulley
- A pulley is a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim
- Pulleys can be used singly or in combination to transmit energy and motion
Screw
- A screw is a short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head
- Screws are used to join things together by being rotated so that it pierces wood or other material and is held tightly in place
Wedge
- A wedge is a piece of a substance that tapers to a thin edge and is used for splitting wood and rocks, raising heavy bodies, or for tightening by being driven into something
- Examples of wedges include shovels, knives, axes, pickaxes, saws, needles, scissors, and ice picks
- Wedges can also be used to hold things together, such as staples, push pins, tacks, nails, doorstops, or shims
Energy
- Energy is what makes things work and change
- There are many different forms of energy, including heat, light, sound, and electricity
- Energy can be obtained from food, gasoline, wind, and the Sun
- We use different forms of energy every day
Heat
- Heat is an energy that makes things warm
- Heat can be obtained from burning things like wood, oil, or gas
- People use heat to warm their homes and cook food, which kills bacteria that can harm humans
Learn about simple machines, their functions, and how they make work easier. Discover the different types of simple machines and their applications.
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