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Search Results for system - All Grades

2777 questions match "system". Refine Your Search

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Grade 2 Solar System
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Grade 7 Skin, Skeleton, and Muscles
Which body system is shown in the diagram?
Endocrine System
  1. digestive
  2. muscular
  3. endocrine
  4. reproductive
Grade 3 Solar System
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
Which bests describes the function of the body system shown in the diagram?
Digestive System
  1. pathogen and disease defense
  2. hormone secretion and body regulation
  3. nutrient absorption and waste excretion
  4. oxygen delivery and carbon dioxide removal
Grade 4 Simple Machines
What type of pulley is shown below?
Pulley System
  1. fixed pulley
  2. movable pulley
  3. block and tackle
Grade 5 Simple Machines
Look at the image of the pulley. If bucket A has a mass of 5 kg, which of the following statements is true about the minimum effort force required to lift the bucket if friction is ignored?
Pulley System
  1. it would take 0 kg of effort to lift the bucket
  2. it would take 2.5 kg of effort to lift the bucket
  3. it would take 5 kg of effort to lift the bucket
  4. it would take 10 kg of effort to lift the bucket
Grade 4 Simple Machines
Crystal must lift a bucket of water 1 meter off the ground. She may lift the bucket herself or use the pulley system shown below. Which will require less effort to lift the bucket?
Pulley System
  1. Crystal lifting the bucket on her own
  2. Crystal using the pulley system to lift the bucket
  3. Crystal must use the same effort if she lifts the bucket or uses the pulley system
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