Motion
What is motion?
A change in an object's position over time.
What is force?
A push or a pull on an object.
What is Newton's First Law?
An object in motion tends to stay in motion, and an object at rest tends to stay at rest, unless acted on by an unbalanced force.
What is a pulley?
A wheel with a rope used to lift things.
What can a spring scale measure?
What is speed?
The distance an object travels in a certain amount of time.
What unit do we use to measure force?
Newtons (N)
What is Newton's Second Law?
The more force you apply to an object, the faster it will accelerate.
What are the different types of pulley?
Fixed, moveable, and compound
How does a spring scale work?
It measures force or mass based on how much the spring stretches.
What is velocity?
Speed in a specific direction.
If two people push a box with equal force, in opposite directions, what type of force is it?
Balanced force.
What is Newton's Third Law?
For every action, there is an equal and opposite reaction.
What is a real-life example of a pulley?
Any acceptable answer.
In what real-life scenarios might you use a spring scale?
To weigh a fish, weigh your produce at the grocery store, weigh your suitcase, etc.
What is acceleration?
Unbalanced force.
What Law would this be an example of? A soccer ball remains still until someone kicks it.
First Law.
What is the main purpose of a pulley?
Which Law of Motion did we see an example of in the video where the teacher made the cars move with the spring scale?
Newton's Second Law.
What is displacement?
The difference between the point where you started and the point that you ended up in.
What is another name for Newton's First Law?
Inertia
What law would this be an example of? When you jump out of a canoe, it moves backwards.
Name the 6 simple machines.
Pulley, Lever, Wheel and Axle, Inclined Plane/Ramp, Screw, Wedge.
Explain what kind of springs you think should be used for something like a trampoline, and why.
Any acceptable answer.