What is a force?
a. an object that sticks to iron or steel
b. information that is collected and recorded
c. a push or a pull
d. data used to support claims
Letter C.
a push or a pull
What force caused the twirly bird to fall to the ground?
Gravity
What is an engineer?
a scientist who designs ways to accomplish a goal or solve a problem
What is a prediction?
A prediction is an educated guess about what will happen.
What is a magnet?
What is it called when two magnets push away from each other?
What force causes things to slow down until they come to a stop?
Friction
What is a variable?
Something you change in an experiment that might affect the outcome.
What does observe mean?
When you watch something very carefully to notice things about it.
What is a shaft?
a long, thin structure that can be used as an axis or axle
There is no movement.
What did our tops rotate on?
An axis (the shaft)
Aerospace Engineers design airplanes, rockets, and space stations.
True or False
What is True?
What is a top?
A toy that spins
How many centimeters long is the car?
6 cm.
Letter B.
Balanced, the magnets are stable (not moving).
Which system would roll down a ramp in a straight line?
System A, because both wheels are the same size.
Civil Engineers fix computers. True or False
What is false?
What is gravity?
a force that pulls objects towards the center of the Earth
What is it called when two magnets move towards each other?
Attraction
Letter D.
Student B is applying 500 units of force.
What kind of wheel and axle system would roll in a path like this? Hint: think about the wheels
A wheel and axle system with one big wheel and one small wheel.
Nautical Engineers focus on the design of water vehicles such as boats, cruise ships, and submarines. True or False.
What is true?
What is criteria?
the rules for evaluating or testing something
What is a bearing?
a part of a machine that supports or guides a rotating point