Forces — Chapter overview · Physical Science: Matter, Forces & Energy, Grade 8
Model balanced forces, gravity, friction, electric and magnetic interactions, and fluid pressure.
Chapter question
How can forces explain stability and changes in motion?
Units in this chapter
- Unit 4.1 · Balanced & Unbalanced Forces
I can find the net force on an object from two or more forces.
- Unit 4.2 · Interaction Pairs & Force Diagrams
I can label each force’s source and receiver and keep interaction partners on separate diagrams.
- Unit 4.3 · Gravity & Friction
I can describe how gravity depends on mass, and calculate weight using W = mg.
- Unit 4.4 · Electric & Magnetic Forces
I can use a field model to describe forces between objects that are not touching.
- Unit 4.5 · Pressure & Buoyant Forces
I can describe fluid pressure and how contact area affects pressure.