The trick where the magician pulls the table cloth off a table leaving the dishes is an example of this.
What is inertia?
100
A lever in which the fulcrum is between the effort and the resistance force.
What is a first class lever?
100
The transfer of energy by a force that moves an object.
What is work?
100
These are the two purposes for which ancient people used simple machines.
What is tools and weapons.
200
The total difference traveled by an object divided by the total time that it traveled.
What is average speed?
200
A strong kick to a soccer ball will cause it to move faster that a smaller kick. (Which law does this describe?)
What is Newton's second law.
200
A simple machine made of an inclined plane wrapped around a wheel?
What is a screw?
200
Whenever a simple machine is used these two forces are at work.
What is effort force and resistance force?
200
Time during the 18th and 19th centuries when many new types of machines were invented.
What is the Industrial Revolution?
300
The act of changing position from one place to another.
What is motion?
300
You step out of a boat onto a dock and the boat pushes away. (Which law does this describe?)
What is Newton's third law.
300
A hand-powered can opener is an example of this simple machine.
What is a wheel and axle?
300
This is a device that makes work easier by changing the size or direction of a force.
What is a machine?
300
These are the positive effects of simple machines.
What is medical advancement, wealthy economy, increase scientific knowledge, convenience, luxuries, and preserving Earth's ecosystems.
400
When you are riding in a car, you sense that you are moving because of this.
What is frame of reference.
400
A push or pull is also known as this.
What is force?
400
A chisel that is used to scrape paint form a board is this type of simple machine.
What is a wedge?
400
If a person pushes a 90-N box for two minutes, but the box doesn't move they do this much work.
What is none.
400
These are the negative effects of simple machines.
What is dangerous weapons, hectic lifestyle, greed, materialism, junk food, inactivity, and illegal drugs?
500
This is the formula for calculating average speed.
What is speed = distance divided by time.
500
If you are pulling a rope in one direction and someone else is pulling it in the other direction, the rope will accleerate in the direction you are pulling it if you ware exerting the bigger force on the rope. (Which law of motion?)
What is Newton's second law.
500
An inclined plane is 5m high and 10m long. This is the mechanical advantage.
What is 2?
500
A mechanical advantage of 10 means that this much less force is needed to do the job.
What is 10 times less force.
500
This is the reason why pyramids were such amazing buildings.
What is They were constructed from millions of stone blocks that weighed thousands of newtons each, but the Egyptians had no tools except 2 or 3 simple machines.