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Course: CHECKPOINT - Lower Secondary Science 0893
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Curriculum

CHECKPOINT - Lower Secondary Science 0893

Biology 01. Structure And Function

0/25

Biology 02. Life Processes

0/27

Biology 03. Ecosystems

0/7

Chemistry 01. Materials And Their Structure

0/24

Chemistry 02. Properties Of Materials

0/19

Chemistry 03. Changes To Materials

0/20

Physics 01. Forces And Energy

0/24

Physics 02. Light And Sound

0/12

Physics 03. Electricity And Magnetism

0/12

Earth and Space 01. The Earth

0/7

Earth and Space 02. Cycles On Earth

0/5

Earth and Space 03. Space

0/13
Quiz

7.2 Know that energy is conserved, meaning it cannot be created or… – Check yourself

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Conservation of energy Checkpoint Science check yourself quiz: free practice for Cambridge Checkpoint – Lower Secondary Science 0893. Work through this Conservation of energy Checkpoint Science check yourself quiz and get instant feedback on every answer. If you get stuck, review the 7.2 Know that energy is conserved, meaning it cannot be created or… – Notes lesson. More practice: Cambridge Checkpoint – Lower Secondary Science 0893 — all units. Syllabus: Cambridge Lower Secondary programme.

  • Questions count: 7
  • Passing grade: B+
  • Time limit: 10 minutes
Start Quiz
1.
According to the comparison table in this lesson, what is the Useful (J) of Electric motor?
According to the comparison table in this lesson, what is the Useful (J) of Electric motor?
Efficiency examples
25
350
80
10
2.
Which statement best describes Dissipation?
Which statement best describes Dissipation?
Heating, mechanical work, electrical, radiation.
Energy cannot be created or destroyed, only transferred.
Energy spreads out and becomes less useful.
Measured in joules (J).
3.
Which statement best describes Efficiency?
Which statement best describes Efficiency?
Measured in joules (J).
No energy enters or leaves.
Energy cannot be created or destroyed, only transferred.
Useful output ÷ total input × 100%.
4.
Which key term matches this description: "Energy cannot be created or destroyed, only transferred."
Which key term matches this description: "Energy cannot be created or destroyed, only transferred."
Closed system
Conservation of energy
Efficiency
Energy
5.
According to the comparison table in this lesson, what is the Efficiency of LED bulb?
According to the comparison table in this lesson, what is the Efficiency of LED bulb?
Efficiency examples
80%
70%
10%
25%
6.
Complete the statement: Energy cannot be ______.
Complete the statement: Energy cannot be ______.
created or destroyed
total input
Conservation of energy
Dissipation
7.
Energy cannot be created or destroyed.
True
False
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Part of Physics 01. Forces And Energy — see every lesson and quiz in this unit.
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