Agricultural Leadership

Match the vocabulary terms listed in the Words to Know to the correct definition.

True or False? Over the past century, the number of farms has declined while the average farm size has grown.

Agriscience is the _____.

• field of science involved with improving agriculture

• process of marketing agriculture

• sale of agricultural products

• design, construction, maintenance, repair, management, and use of agricultural technology and mechanical systems

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-4

NGSS.MS-LS1-5

NGSS.MS-LS2-5

True or False? Agricultural technology will need to continue to advance to meet the demands to feed a growing world population.

Tags

NGSS.MS-ETS1-2

Who is credited with the invention of the steel plow?

• Cyrus McCormick

• John Deere

• James Watt

• None of the above

True or False? Mechanization and technology advancements have resulted in decreased food production.

A tractor pulls a 650-lb skid a distance of 50′ in 40 seconds. How much horsepower was expended? Round your answer to the nearest hundredth.

• 1.48 horsepower

• 2.50 horsepower

• 812 ft-lb

• 1.48 watts

Tags

NGSS.MS-PS2-2

If a force of 200.0 lb moves an object 12.0′, how much work has been performed?

• 1200 ft-lb

• 2400 ft-lb

• 3200 ft-lb

• None of the above

Tags

NGSS.MS-PS2-2

Which of the following simple machines uses a fulcrum as a pivot point?

• Pulley

• Wheel and axle

• Lever

• Wedge

The mechanical advantage of a wheel and axle is the ratio of the _____.

• radius of the wheel to the radius of the axis

• axle's circumference to the radius of the wheel

• circumference of the wheel to the radius of the axis

• A wheel and axle have no mechanical advantage.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2