Forces Flashcards by Oscar Sabatini | Brainscape

Q

What is a force?

A

It is something that act on an object whether it moves or not.

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Q

How do you measure forces?

A

(N) Newtons

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Q

What are examples of a contact force?

A

Friction and Air resistance.

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Q

What is the equation to calculate speed?

A

Speed=distance/time

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Q

Examples of non-contact forces.

A

Gravity and magnetism (repulsion)

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Q

What is the equation for distance?

A

Distance=speed X time

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Q

What is the equation for time?

A

Time=distance/speed

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Q

What is an independent variable?

A

Something you change

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Q

What is a dependant variable?

A

Something you measure

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Q

What is a control variable?

A

Something you keep the same

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Q

What is the equation for gravity?

A

Gravity=weight/mass

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Q

What is the equation for mass?

A

Mass=weight/gravity

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Q

What is Mercury’s gravity?

A

3.8N/kg

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Q

What is Venus’s gravity?

A

8.8N/kg

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Q

What is Earth’s gravity?

A

9.8N/kg

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Q

What is Mars’s gravity?

A

3.8N/kg

Q

What is Jupiter’s gravity?

A

25N/kg

Q

What is Saturn’s gravity?

A

10.4N/kg

Q

What is Uranus’s gravity?

A

10.4N/kg

Q

What is Neptune’s gravity?

A

13.8N/kg