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Physics

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Okey Veum

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Term1/13
A helium balloon rises in the air because it is less dense than oxygen
Definition1/13

Yes, helium is less dense than the air.

Term1/13
What causes friction between two seemingly smooth surfaces
Definition1/13

Tiny collisions on the surfaces, called microwelds, cause friction.

Term1/13
Properties of matter are typically broken into two categories physical and
Definition1/13

chemical

Term1/13
What factors determines the strength of the frictional force between two surfaces
Definition1/13

how hard the surfaces push to gether the types of surfaces involved

Term1/13
Do both gases and exert a buoyant force
Definition1/13

Yes. Gases and liquids both exert a buoyant force.

Term1/13
The type of motion that's present in circular or curved pathways is called motion
Definition1/13

circular

Term1/13
If an object floats the volume of the displaced water is equal to the volume of the whole object
Definition1/13

False - Apex

Term1/13
Since an object moving in uniform circular motion keeps a constant speed there is no force necessary to keep it in motion
Definition1/13

false

Term1/13
To calculate the density of a substance what two properties do you need to know
Definition1/13

Mass, volume~Apex:)

Term1/13
In a collision a vehicle that rebounds off the object it trikes experiences less force than if it crumples assuming the time is the same in both situations
Definition1/13

false

Term1/13
Liquids that do not mix form into layers when they have different densities true or false
Definition1/13

true

Term1/13
The of any amount of a solid liquid or gas relative to its volume is called it's density
Definition1/13

mass

Term1/13
Which of the following has the lowest density
Definition1/13

air

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Cards in this guide (13)
A helium balloon rises in the air because it is less dense than oxygen

Yes, helium is less dense than the air.

What causes friction between two seemingly smooth surfaces

Tiny collisions on the surfaces, called microwelds, cause friction.

Properties of matter are typically broken into two categories physical and

chemical

What factors determines the strength of the frictional force between two surfaces

how hard the surfaces push to gether the types of surfaces involved

Do both gases and exert a buoyant force

Yes. Gases and liquids both exert a buoyant force.

The type of motion that's present in circular or curved pathways is called motion

circular

If an object floats the volume of the displaced water is equal to the volume of the whole object

False - Apex

Since an object moving in uniform circular motion keeps a constant speed there is no force necessary to keep it in motion

false

To calculate the density of a substance what two properties do you need to know

Mass, volume~Apex:)

In a collision a vehicle that rebounds off the object it trikes experiences less force than if it crumples assuming the time is the same in both situations

false

Liquids that do not mix form into layers when they have different densities true or false

true

The of any amount of a solid liquid or gas relative to its volume is called it's density

mass

Which of the following has the lowest density

air

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