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Science Concepts and Evidence

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

1.

What does conservation of energy mean?A. Energy changes form but total energy is conserved B. Mass times velocity C. Change in velocity per unit time D. Rate of energy transfer or work

2.

What is acceleration?A. Mass times velocity B. Rate of charge flow C. Rate of energy transfer or work D. Change in velocity per unit time

3.

What does Newton's first law describe?A. Mass times velocity B. Kinetic energy C. Change in velocity per unit time D. Inertia

4.

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

5.

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

6.

What is power?A. Inertia B. Mass times velocity C. Rate of charge flow D. Rate of energy transfer or work

7.

What does electric current measure?A. Inertia B. Rate of charge flow C. Mass times velocity D. Kinetic energy

8.

What energy does a moving object have?A. Change in velocity per unit time B. Kinetic energy C. It stays constant while wavelength decreases 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 18
  1. What does conservation of energy mean?Energy changes form but total energy is conserved
  2. What is acceleration?Change in velocity per unit time
  3. What does Newton's first law describe?Inertia
  4. What is momentum?Mass times velocity
  5. What happens to wave speed when frequency rises in the same medium?It stays constant while wavelength decreases
  6. What is power?Rate of energy transfer or work
  7. What does electric current measure?Rate of charge flow
  8. What energy does a moving object have?Kinetic energy

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.