Net Force 1
Balanced and Unbalanced
Chemical Change
Vocabulary
Metals and Non-Metals
100
Calculate Net Force and direction:
15 N Right
15 N Right
30 N RIGHT
100
Provide an example of an unbalanced force.
Answers may vary
100
2 clear substances are combined. Give 2 examples of what might happen if a chemical change occurs.
Answers may vary
100
the type of noncontact force that attracts or repels.
magnetism
100
#15
Which chart BEST describes the elements section 3.
Shiny
Dull
Mostly brittle
Semiconductor
200
Calculate Net Force and direction:
25 N RIGHT
50N RIGHT
75 N Right
200
Balanced or Unbalanced? A student pushes a file cabinet on wheels with a force of 200 newtons (N) to the right. At the same time, another student pushes the same file cabinet with a force of 97 N to the left.
Unbalanced
200
What is it called when two liquid substances combine to forms a new solid substance?
precipitate
200
the combination of all the forces acting on an object
net force
200
______________ refers to the way most metals can be stretched into wires
Ductile
300
Calculate Net Force and direction:
6N Left
1N Right
5N Left
300
Balanced or Unbalanced? An asteroid moving at a constant speed through space.
Balanced Force
300
Wood Burning is an example of what kind of change?
Chemical Change
300
What type of elements are malleable?
metals
300
This group of elements are brittle insulators.
non-metals
400
Calculate Net Force and direction:
11N Up and 20N up
11 N Down and 9N Down
31 N Up - 20N UP
11N UP
400
Balanced or Unbalanced? A toy truck is at rest on the floor.
The forces are balanced so no motion occurs.
400
#17
Baking a cake is_____ change and why?
Chemical, you cannot separate the items.
400
A type of force that is a "push back" or support force.
Normal Force
400
All matter is made up of at least one element
True
500
Calculate Net Force and direction:
5N Up
5N Down
0N
No direction
500
Balanced or Unbalanced? A ball rolling across the floor with friction acting in the opposite direction.
Unbalanced Force
500
What is one evidence of a chemical change?
Indicators of a chemical change include color change, temperature change, gas production, and the formation of a precipitate.
500
The type of force that includes a push or pull
Applied Force
500
#18
Deep within Earth's mantle, some materials sink toward the center while others rise towards the surface. Which property of a material is directly related to whether it will sink or rise.
Density