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PRIMARIA - 4º - FORCES PART 4 - CIENCIAS NATURALES - FORMACIÓN
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Push and pull forces part 4. So far we've seen types of push and pull forces. Do you remember
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all of them? Let's review. First we have contact and non-contact forces. Number two,
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balanced and unbalanced forces and number three magnetism the fourth type
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of push and pull force is gravity gravity is a non-contact force that
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pulls objects towards the center this force is only noticeable with very large
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objects for example planets large objects have a stronger pull toward
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center than smaller objects. Earth is six times bigger than the moon. This means
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that the force of gravity on Earth is six times greater than the force of
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gravity on the moon. Now let's talk about mass and weight. Mass is the amount of
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matter in an object it is measured in kilograms weight is a force and its unit of measurement
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is in newtons let's imagine that this dog has a mass of 10 kilograms
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its mass is the same on earth and on the moon because the matter does not change
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The dog weighs 100 Newtons on Earth and 16 Newtons on the Moon. This is because weight
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is a force, which is mass multiplied by gravity. The dog weighs more on Earth
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because Earth has stronger gravity. Until next time, see you soon!
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- Subido por:
- Cp santodomingo algete
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- Visualizaciones:
- 164
- Fecha:
- 10 de junio de 2020 - 14:18
- Visibilidad:
- Público
- Centro:
- CP INF-PRI SANTO DOMINGO
- Duración:
- 02′ 37″
- Relación de aspecto:
- 1.78:1
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- 1024x576 píxeles
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- 102.78 MBytes
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