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Gravity and forcwe
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Doea gravity work over a distance?
Yes , it does
When is gravity stronger: closer or far objects
Close objects
What is the international space station?
An artificial satellite
What does the arrow length show?
The size of the force
What does the arrow direction shown ?
The direction of the force
How are forces shown on a force diagram?
By arrows
Why do satellite need high speed?
To stay in orbit
Are gravity and normal force balanced fro a book on a table.
What happens when forces are balanced?
The object stay still or moves at the same speed.
Name one use of artificial satellites and what do weather satellite take?
Weather prediction / photographs of earth
What keeps artificial satellite in orbits?
Gravity and speed
What force is used when standing up from a chair?
Applied force
How so artificial satellite get into space?
They are launched by rockets
Is gravity an applied force?
No, it is a non- contact force.
Why is a force diagram useful?
It helps us understand how forces act on objects
What force supports objects resting on surfaces?
Normal force
What keeps the moon in orbit?
Earth's Gravity
Why does a book stay still on a table?
Gravity pulls it down and the table pushes it up with equal force.
What is a force diagram?
A drawing that shows forces acting on an object.
What does orbit mean?
To move around somethig
What is an applied force?
A force applied by a person or object
When does a normal force act?
When an object is in contact with another object
What is a normal force?
A normal force is a support force from a surface
Why is the moon called a natural satellite?
Because it orbits the earth and it is not made by human.
Which have stronger gravity : big objects or small objects
Big objects
What is a satellite?
An object in space that orbits a larger object
Does gravity act on moving objects and also object at rest?
yes
What is an artificial satellite?
A satellite made by humans
What is gravity?
Gravity is a force that pulls object towards t he erath.
Do all objects have gravity?
Yes, all objects have gravity
Name two type of force?
Gravity and applied force.
What is a force?
A force is a push and a pull.
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