Science- Motion & Simple Machines
After studying how forces affect motion, you will...
- classify contact forces as push, pull, friction, or buoyancy
- classify non-contact forces as gravity or magnetism
- identify the forces acting on a load
- recognize friction as a force that slows down or stops a moving object that is touching another object or surface
- compare the forces (measured by a spring scale in Newtons) required to overcome friction when an object moves over different surfaces (i.e., rough/smooth)
- describe how friction affects the amount of force needed to do work over different surfaces or through different media
- use a spring scale to measure the weight (resistance force) of the load
- determine the gravitational pull of the Earth on an object (weight) using a spring scale
- use Newton's laws to explain the interaction of mass and force
- use Newton's laws to predict changes in motion
BrainPop Jr: Pushes & Pulls
StudyJams: Force & Motion BrainPop Jr: Gravity BrainPop: Buoyancy BrainPop: Magnetism BBC: Pushes & Pulls BBC: Forces in Action BBC: Friction BBC: Forces & Movement |
BrainPop: Isaac Newton
BrainPop: Newton's Laws of Motion StudyJams: Newton's First Law- Inertia StudyJams: Newton's Second Law- Acceleration StudyJams: Newton's Third Law- Action & Reaction Connections: Virtual Spring Scale |
After studying simple machines, you will...
- identify the following simple machines: levers, inclined planes, wheel and axle, pulleys
- identify how simple machines affect the force applied to an object and/or the direction of movement as work is done
- explain how work can be done on an object
- recognize simple machines change the amount of effort force and/or direction of force
- compare the measures of effort force needed to lift a load with and without the use of simple machines
- identify the simple machines in common tools and household items
BrainPop: Pulleys
BrainPop: Gears BrainPop: Wheel & Axle StudyJams: Simple Machines Slideshow Simple Machines |