Curriculum
Science — First Preparatory
Unit 1: Matter
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Unit 2: Forces
0/6
Unit 3: Life
0/6
Unit 4: Earth and Space
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Text lesson
Gravitational Forces
Gravitational Forces
Common mistakes
Common mistakes
- Confusing mass and weight, or writing weight in kg. Weight is measured in newtons.
- Believing that mass changes on the Moon. Mass is constant; it is the weight that changes.
- Forgetting to multiply the mass by the gravitational acceleration when calculating weight.
- Believing that a heavier object falls faster than a lighter one when air resistance is absent. Without air resistance, both fall with the same acceleration.
Gravitational Forces · 5 / 6