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100
What is force?
Force is a push or pull that acts on an object.
100
How is force measured?
Force is measured using Newtons.
100
What is a spring scale sometimes called?
A spring scale is sometimes called a force meter.
100
What is a spring scale?
A spring scale is used to measure force.
100
What is tension?
Tension is a pulling force acting on two connected objects.
200
What is compression?
Compression is a pushing force where an object is resisting being squeezed together.
200
What does bending mean?
Bending happens when a structure cannot resist the force acting on it.
200
What does rigid mean?
Rigid means a structure that does not bend easily.
200
What is does a simple machine include? List at least 3 out of the 6.
A simple machine makes work easy. It includes a lever, wheel and axle, pulley, screw, wedge and inclined plane.
200
What is a mechanical system?
A mechanical system is any system that uses one or more simple machine.
300
What is a gear?
A gear is a toothed wheel or rod that interlocks.
300
What is torque?
Torque is a turning effect or force.
300
What are some EXTERNAL forces that affect structures?
EXTERNAL forces that affect structures are tornadoes, hurricanes or earthquakes.
300
How can you protect your windows against strong winds?
People can nail pieces of plywood over the windows to protect them.
300
Where is a good place to seek shelter when strong winds become dangerous? Why?
A basement is a good place to hide when strong winds become dangerous because it is underground.
400
What are 3 types of bridges we have been learning about?
Beam Bridge, Arch Bridge, Suspension Bridge
400
Describe a BEAM BRIDGE?
A BEAM BRIDGE has no support underneath. It is made with one long strong piece called a beam or span. It is held up by piers.
400
Describe an ARCH BRIDGE.
An ARCH BRIDGE is made out of curved pieces of steel, a cross piece laid on top of an arch to cross. Vertical structs connect the arch piece.
400
Describe a SUSPENSION BRIDGE.
A SUSPENSION BRIDGE has two or more huge towers set to lakes. Cables are attached to a roadway.
400
Give an example of object under tension and an object under compression.
Tension - lamp hanging from ceiling Compression - squeezing a marshmellow
500
What is the formula for Mechanical Advantage?
Mechanical Advantage = Load divided by Effort
500
What is an example of a first-order, second-order and third-order lever? You should know the answer....IF...you did your homework!
Crowbar - Wheelbarrow - Fishing Rod
500
What does a mechanical advantage of 1 mean?
It means NO MECHANICAL ADVANTAGE.
500
What are components?
Components are separate parts that work together to achieve a specific function or job.
500
List 5 components of a computer
1. Monitor 2. Motherboard 3. Keyboard 4. CPU 5. Mouse/mouse 6. Hard Drive