Balanced & Unbalanced Forces
Balanced Forces & Engineering
Patterns of Motion, Gravity & Friction
Magnets & Forces
Magnets & Engineering
100
a push or a pull
What is force?
100
a bridge with a curved arch in the center
What is an arch bridge?
100
an invisible force that resists the motion of an object
What is friction?
100
an object that can attract or repel certain materials, often metals
What is a magnet?
100
to make a plan for creating or doing something
What is design?
200
to move an object toward you
What is pull?
200
a bridge that is supported by thick poles
What is a pillar bridge?
200
an invisible force that pulls any object down, toward the Earth
What is gravity?
200
something that can be pushed and pulled by magnets
What is magnetic?
200
a person who uses science to come up with solutions to problems
Who is an engineer?
300
to move an object away from you
What is push?
300
a bridge where the weight is pulled up by ropes hung from tall poles
What is a suspension bridge?
300
a change in the position of an object
What is motion?
300
to make a material magnetic
What is magnetize?
300
a pretend version of something that scientists use when the real thing is too big, small, or complicated to work with
What is a model?
400
two equal forces that push or pull in opposite directions so that the object doesn't move
What is balanced forces?
400
a bridge with triangular supports
What is a truss bridge?
400
b. It will travel toward Tonya and stop before it reaches her.
400
magnets attract to these two materials
What is iron and steel?
400
something you can observe about an object or material
What is a property?
500
two forces that push and pull in opposite directions where one force is greater than the other so that the object moves
What is unbalanced forces?
500
the strongest shape
What is a triangle?
500
a. Observe how far the ball travels after kicking it with different amounts of force.
c. Measure the distance the soccer ball travels each time it’s kicked.
500
magnets have these two poles
What is north and south?
500
Match each situation to attracting, repelling or working across a distance:
1. “Magic” trick: moving a magnet with a magnet under the table
2. Holding things on the refrigerator with magnets
What is:
1. repelling and working across a distance
2. attracting