Physics - Forces and Energy

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This is the force that acts up to support any object on a surface.

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Secondary 1 Science Physics

20 Terms

1

This is the force that acts up to support any object on a surface.

Contact Force

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2

The force directed towards the center of any mass.

Gravity

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3

The pull from the Moon's gravity.

Tidal Force

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4

This is the force of gravity on an object.

Weight

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5

This is a kind of frictional force that is caused by a moving object having to push against particles in the air.

Air Resistance

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6

What is the gravitational force of the earth?

10 N/kg

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7

What is weight measured in?

Newtons

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8

What is mass measured in?

Kilograms / kg

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9

Mass is...

the quantity of matter in an object

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10

Mass is ....... even if the strength of gravity changes

constant

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11

Formula to find weight

mass x gravitational force

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12

Formula to find mass

weight ÷ gravitational force

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13

A cloud of dust and gas in space is called....

nebula

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14

How are stars formed?

Stars are formed by nebulas and gas.

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15

Energy is...

the ability to do work

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16

How can energy be used to do something?

Energy can be stored or transferred to be able to do something.

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17

Name the energy forms learned in this chapter.

Kinetic, Chemical, Thermal, Elastic Potential, Gravitational Potential, Sound, Light energy.

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18

The Law of Conservation of Energy states that energy cannot be ....... or ........

The Law of Conservation of Energy states that energy cannot be created or destroyed.

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19

Kinetic Energy is

energy in moving objects

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20

Chemical Energy is

a form of stored energy

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