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If an object is moving at a constant speed in one direction what is needed to change its speed or direction?
An unbalanced force
Does inertia change with speed?
Inertia is a measurement of the amount of energy needed either to start the object moving, or to slow down or stop its movement. This depends upon the mass (weight) of the object, but more particularly its change of speed. The greater the mass (weight) of the object the greater the amount of energy needed to move it and stop it.
Is the rate of change of an object?
the object's "speed"
What is change in the speed of an object?
A change in the velocity is produced by a force acting on the object. A change in velocity means a change in speed or direction (or both).
Does change in speed of an object always indicate a change in speed?
yes
What is needed in order to cause an object at rest to move or an object in motion to change the direction and speed?
A force.
If an object is moving at a constant speed in one direction what is needed to change its speed or direction?
An unbalanced force
What is needed in order to cause an object at rest to move or an object you motion to change its deirection or speed?
An unbalanced force.
What is needed to cause the object at rest to move or an object in motion to change the direction or speed?
Force, which causes acceleration
What is needed in order to cause an object at rest to or an object in motion to change its direction or speed?
An outside force to act on it
How does the affect the speed of an object?
More intertia makes it so more energy is needed in order to change the speed.
What is needed in order to cause an object at rest to move or an object in motion to change its directed or speed?
An outside force to act on it
What is needed in order to cause an object at rest to move or an object in motion to change its direction speed?
An outside force to act on it
Does inertia change with speed?
Inertia is a measurement of the amount of energy needed either to start the object moving, or to slow down or stop its movement. This depends upon the mass (weight) of the object, but more particularly its change of speed. The greater the mass (weight) of the object the greater the amount of energy needed to move it and stop it.
What does it mean for an object to have constant speed?
the object's speed doesn't change
Is the rate of change of an object?
the object's "speed"
Which of these would change the direction of an object but not affect the object's speed?
Circular motion would change the direction of an object but would not affect the object's speed.
