Vocab
A push or pull one body exerts on another
What is Force?
The rate of change of position
What is speed?
Units for velocity
What are meters per second (m/s)
The more mass an object has, the greater its _______.
What is Inertia?
The measure of the force of gravity on an object
What is the object's weight?
Forces that are equal in size and opposite in direction
What are balanced forces?
Units for speed
What is meters per second (m/s)?
Describes both speed and direction
What is velocity?
The amount of friction that exists between two surfaces depends on two factors
What are the kinds of surfaces and the force pressing the surfaces together?
The units mass is measured in
What are grams (g) and kilograms (kg)?
The total distance traveled divided by the total time of travel
What is average speed?
If you know the distance and time, you can calculate _______.
What is the speed?
Units for Acceleration
What are meters per second squared (m/s2)?
An object moving at a constant velocity keeps moving at that velocity unless a net force acts on it. An object at rest stays at rest unless a net force acts on it.
What is Newton's first law of motion?
The amount of gravitational force between objects depends on what two things
What is mass and distance between objects?
The tendency of an object to resist any change in its motion
What is inertia?
It takes a runner 10 seconds to run 100 meters. Calculate the speed.
What is 10 m/s?
A car slows down from 10 m/s to 5 m/s in a time interval of 5 seconds. Calculate the acceleration.
What is -1 m/s2?
The force that keeps you on the ground
What is Gravity?
If you were transported to the moon, your mass would stay constant but what would happen to your weight?
What is decrease?