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GRADE 7 FORCE AND MOTION

At the conclusion of this unit you will understand that…

• Forces occur in our world and affect our lives.

Inquiring scientific minds will be able to answer these essential questions...

• How is energy conserved?
• What is motion and how is it affected by a force?
• How do Newton’s Laws of Motion affect our daily lives?
• How are gravity, weight and mass related?
• How is friction helpful or harmful?
• How are forces measured?
• What are balanced and unbalanced forces?
• What are action /reaction forces?
• What are the differences between straight line, circular, and inclined path motion?

Key Scientific Concepts/Vocabulary…

force	mass	gravitational force	weight
magnetic force	buoyancy	elastic force	Newton
electrical force	friction	lubricant	inertia
unbalanced forces	balanced forces	contact forces	non-contact forces
momentum	vector	acceleration	velocity
speed	Newton’s Laws of Motion	projectile	net force
free fall	terminal velocity	centripetal force

Young physicists will be able to….

• Define force.
• Measure and identify types of forces.
• Differentiate between unbalanced – balanced forces.
• Analyze the effects of frictional force.
• Differentiate between mass and weight.
• Provide examples for each of Newton’s Laws of Motion.

1. Inertia

2. Force = Mass x Acceleration

3. Action-Reaction Forces

· Relate motion, speed, and acceleration.

· Explore motion in a straight line, circular, and inclined path.

· Select appropriate lab equipment.

· Demonstrate safe and appropriate use of lab equipment.

· Effectively communicate results.