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Science Concepts and Evidence

Grade 11 · Stretch challenge · 8 questions · Version PG-WDQXP4-1N5B

1.

What is momentum?A. Energy changes form but total energy is conserved B. Kinetic energy C. Mass times velocity D. Inertia

2.

What is power?A. Energy changes form but total energy is conserved B. Mass times velocity C. It stays constant while wavelength decreases D. Rate of energy transfer or work

3.

What does conservation of energy mean?A. Rate of charge flow B. Inertia C. Mass times velocity D. Energy changes form but total energy is conserved

4.

What happens to wave speed when frequency rises in the same medium?A. Change in velocity per unit time B. Inertia C. Kinetic energy D. It stays constant while wavelength decreases

5.

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

6.

What energy does a moving object have?A. Kinetic energy B. Mass times velocity C. Inertia D. Rate of energy transfer or work

7.

What is acceleration?A. Kinetic energy B. Rate of energy transfer or work C. Energy changes form but total energy is conserved D. Change in velocity per unit time

8.

What does Newton's first law describe?A. Kinetic energy B. Change in velocity per unit time C. Energy changes form but total energy is conserved D. Inertia

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

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.