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Terms in this set (17)
opposes motion between surfaces that are touching.
determined by combining forces
Acceleration is the rate at which velocity changes
is a measure of the gravitational forces on an object
Describe the relationship between motion and a reference point.
The relationships between motion and reference point is that When an object changes position over time relative to a reference point, the object is in motion. This means that there relationship is they are similar
. How is it possible to be accelerating and traveling at a constant speed?
They both have a magnitude and a direction
Explain the difference between mass and weight
mass is of how much matter an object has and weight is of how strongly gravity pulls on that matter.
A kangaroo hops 60 m to the east in 5 s. Use this information to answer the following qustions. Show your work below. What is the kangaroo's average speed?
60/5= 12 meters per second is the average speed
in object in motion has inertia, so it tends to stay in motion
an object is falling at it's terminal velocity if it falls at a constant velocity
is the path that a thrown object follows.
is a property of moving objects that depends on mass and velocity.
occurs only when air resistance does not affect the motion of a falling object.
An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
This law is often called
"the law of inertia".
Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
For every action there is an equal and opposite re-action.
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