SC15.3.1
Plan and carry out an experiment to determine the effects of balanced and unbalanced forces on the motion of an object using one variable at a time, including number, size, direction, speed, position, friction, or air resistance (e.g., balanced forces pushing from both sides on an object, such as a box, producing no motion; unbalanced force on one side of an object, such as a ball, producing motion), and communicate these findings graphically.
Plan and carry out an experiment to determine the effects of balanced and unbalanced forces on the motion of an object using one variable at a time, including number, size, direction, speed, position, friction, or air resistance (e.g., balanced forces pushing from both sides on an object, such as a box, producing no motion; unbalanced force on one side of an object, such as a ball, producing motion), and communicate these findings graphically.
UP:SC15.3.1
Vocabulary
- Experiment
- Variable
- Motion
- Force (push and pull)
- Balanced forces
- Unbalanced forces
- Cause and effect
- Number
- Size
- Direction
- Position
- Friction
- Air resistance
- Communicate
- Graphically
- Net force
- Sum
Knowledge
Students know:
- Each force acts on one particular object and has both strength and direction.
- An object at rest typically has multiple forces acting on it, but they add to give zero net force on the object.
- Forces that do not sum to zero can cause changes in the object's speed or direction of motion.
- Objects in contact exert forces on each other.
Skills
Students are able to:
- Collaboratively plan an experiment to determine the effects of balanced and unbalanced forces on the motion of an object using one variable at a time.
- Carry out an experiment to determine the effects of balanced and unbalanced forces on the motion of an object using one variable at a time.
- Collect and record data from experiment.
- Describe how the investigation plan addresses the purpose of the investigation.
- Communicate findings graphically.
Understanding
Students understand that:
- Cause and effect relationships provide evidence when investigating balanced and unbalanced forces.
Scientific and Engineering Practices
Planning and Carrying out Investigations
Crosscutting Concepts
Cause and Effect
