What is a food that has been changed from its original state (frozen, canned, salted, smoked, dried, etc)
100
What is motion?
What is the act of changing position from one place to another.
100
What is a force?
What is a push or a pull.
100
What is a machine?
What is a device that makes work easier for us.
200
Describe the difference between Traditional & modern farming.
What is Traditional uses people & animals to work the land. Modern farming uses machinery.
200
Why is farming important?
What is it provides us with our food.
200
What is speed?
What is the distance an object moves in a given amount of time.
200
The force which pulls everything toward the center of the Earth.
What is gravity.
200
A machine that does work with one motion is called...
What is a simple machine.
300
Name the three types of forests.
What is tropical rainforest, conifer forests, & temperate-deciduous forests.
300
Why are tropical rainforests so important?
What is they provide us with an array of fruits & other products.
300
Explain the difference between instataneous speed & average speed
What is instantaneous = the speed of an object at a given moment.
Average = the total distance traveled divided by the total time traveled.
300
What is inertia?
What is the tendency of an object to stay at rest or keep moving in a straight line.
300
Name the 6 types of simple machines.
What is lever, pulley, block & tackle, wheel & axle, inclined plane, wedge.
400
Explain how food has changed over the centuries?
What is you used to have to grow & raise your own food on a farm. Nowadays food is packaged and available in a supermarket which means you can get foods from all over the world.
400
What is acceleration?
What is the change in speed of an object.
400
Give an example of something that follows Newton's third law of motion.
What is pushing off against a wall when swimming, ice-skating or rollerblading, bouncing a ball.
400
Name the three classes of lever and provide an example of each one.
What is First class = scissors, seesaw
Second class = bottle opener, oars
Third class = fishing rod, rake
500
What is a deciduous tree?
What is a tree that loses its leaves in the Autumn (Maples, Oaks, Elms)
500
Name some foods that were produced by traditional farmers.
What is crops, meat, dairy, honey.
500
Name & explain the laws of motion.
What is Newton's first law = an object at rest stays at rest until it is acted upon by a force. An object in motion will stay in motion until acted upon by a force.
Newton's second law = When two forces acton an object, the object will accelerate in the direction of the bigger force.
Newton's third law = For every action there is an equal & opposite reaction.
500
What is the relationship between mass & inertia?
What is the greater the mass the greater inertia.
500
What is mechanical advantage?
What is the ration of resistance force to effort force.
Mechanical advantage = resistance force / effort force