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Science Concepts and Evidence

Grade 11 · Stretch challenge · 8 questions · Version PG-PGFWR0-1N5B

1.

What does electric current measure?A. Inertia B. Change in velocity per unit time C. Rate of charge flow D. Rate of energy transfer or work

2.

What energy does a moving object have?A. Change in velocity per unit time B. Inertia C. Kinetic energy D. Energy changes form but total energy is conserved

3.

What is power?A. Kinetic energy B. Inertia C. Change in velocity per unit time D. Rate of energy transfer or work

4.

What does conservation of energy mean?A. Change in velocity per unit time B. Kinetic energy C. Inertia D. Energy changes form but total energy is conserved

5.

What is momentum?A. Mass times velocity B. Change in velocity per unit time C. Inertia D. Kinetic energy

6.

What is acceleration?A. Mass times velocity B. Change in velocity per unit time C. Inertia D. Energy changes form but total energy is conserved

7.

What does Newton's first law describe?A. Kinetic energy B. Inertia C. Rate of energy transfer or work D. Change in velocity per unit time

8.

What happens to wave speed when frequency rises in the same medium?A. It stays constant while wavelength decreases B. Change in velocity per unit time C. Rate of energy transfer or work D. Energy changes form but total energy is conserved

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 13
  1. What does electric current measure?Rate of charge flow
  2. What energy does a moving object have?Kinetic energy
  3. What is power?Rate of energy transfer or work
  4. What does conservation of energy mean?Energy changes form but total energy is conserved
  5. What is momentum?Mass times velocity
  6. What is acceleration?Change in velocity per unit time
  7. What does Newton's first law describe?Inertia
  8. What happens to wave speed when frequency rises in the same medium?It stays constant while wavelength decreases

Worked example

Read the direction, identify the assessed skill, solve or cite evidence, and check the response.

Common mistake

Using a memorized procedure without checking what the question asks.

Helpful hint

Name the standard skill before answering.