On Tuesday, November 19, we will be having a Simple Machines Quiz. We have reviewed in class what will be on the quiz. For extra practice, students are encouraged to play the games posted previously on our blog (click here).
- Name the 6 different simple
machines and provide examples of each (Lever, Wheel and Axel, Pulley,
Incline Plane, Wedge, Screw)
- Understand that we could group
those 6 machines into two groups: Levers and Inclined Planes because
wheels and pulleys are levers and wedges and screws are inclined planes
- Label where the load, fulcrum, and
effort are in various levers (1st, 2nd, and 3rd
class)
- Understand and explain that by
moving the fulcrum in a lever, the amount of force needed will be
different to move the load, and the distance the load travels will be
different
- Understand and explain that in
incline planes, the smaller (gentler) the slope, the longer it will take
to get between the two heights but the less work you’ll need, and vice
versa
- Understand and explain that if you
turn one gear in one direction, the gear beside it will turn in the
opposite direction; predict which way a gear in a gear train will turn
- Design a machine that solves a
problem and label the different simple machines that are a part of it
Here are some Science vocabulary words we brainstormed as a class that might be helpful to use in our explanations: force, levers: fulcrum, load, effort; gears: teeth, mesh, driver, driven gears; incline plane: slope; wedge; screw; pulley: fixed, moveable, compound; wheel and axel: friction, rollers.