As Research for a Science Class,seventh Graders at a Grade

question 11

Multiple Choice

As research for a science class,seventh graders at a grade school in Ontario collected data on weather patterns.For each day in January of 2011,they recorded the high and low temperatures,precipitation,humidity,and wind speed.

• A)Who: All days in January of 2011;Cases: Each day is a separate case;What: High and low temperatures,precipitation,humidity,and wind speed;When: January 2011;Where: Ontario;Why: Research for a science class;How: Not specified.
• B)Who: Seventh graders;Cases: Each student is a separate case;What: High and low temperatures,precipitation,humidity,and wind speed;When: January 2011;Where: Ontario;Why: Research for a science class;How: Not specified.
• C)Who: All days in January of 2011;Cases: Each student is a separate case;What: High and low temperatures,precipitation,humidity,and wind speed;When: January 2011;Where: Ontario;Why: Research for a science class;How: Watching the weather channel.
• D)Who: All days in January of 2011;Cases: Each day is a separate case;What: High and low temperatures;When: January 2011;Where: Ontario;Why: Research for a science class;How: Watching the weather channel.
• E)Who: Teachers;Cases: Each day is a separate case;What: High and low temperatures,precipitation,humidity,and wind speed;When: January 2011;Where: Grade school;Why: Research for a science class;How: Reading the newspaper weather predictions.

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Definitions:

Control Transformer

A common type of isolation transformer generally used to change line voltage of 240 or 480 volts into 120 volts to operate motor-control equipment.

Auto

Refers generally to automobiles or the automation of systems, indicating self-operation or control of devices without direct human intervention.

Distribution

The process of distributing electrical energy from the transmission system to the end users or consumers effectively.

Isolation

The process or condition of separating or being separated from a system or environment, often for safety, such as electrical isolation to prevent shock.