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Science Concepts and Evidence

Grade 11 · On-level practice · 8 questions · Version PG-1DKFCTG-5PQZ

1.

What is power?A. Change in velocity per unit time B. It stays constant while wavelength decreases C. Rate of charge flow D. Rate of energy transfer or work

2.

What is momentum?A. Rate of energy transfer or work B. Inertia C. Mass times velocity D. It stays constant while wavelength decreases

3.

What energy does a moving object have?A. Kinetic energy B. Inertia C. Energy changes form but total energy is conserved D. It stays constant while wavelength decreases

4.

What does electric current measure?A. Rate of charge flow B. Mass times velocity C. Kinetic energy D. It stays constant while wavelength decreases

5.

What does conservation of energy mean?A. Energy changes form but total energy is conserved B. Kinetic energy C. Rate of charge flow D. Rate of energy transfer or work

6.

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

7.

What is acceleration?A. Change in velocity per unit time B. Inertia C. Kinetic energy D. It stays constant while wavelength decreases

8.

What does Newton's first law describe?A. Rate of charge flow B. Kinetic energy C. Change in velocity per unit time 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 19
  1. What is power?Rate of energy transfer or work
  2. What is momentum?Mass times velocity
  3. What energy does a moving object have?Kinetic energy
  4. What does electric current measure?Rate of charge flow
  5. What does conservation of energy mean?Energy changes form but total energy is conserved
  6. What happens to wave speed when frequency rises in the same medium?It stays constant while wavelength decreases
  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.