True or false: Forces can only act in contact with each other, not at a distance.
False
True or false: Newton's first law is also called the law of acceleration.
False
If you drop a ball, gravity in an _____ force pulls the ball towards Earth.
Action
The resistance of an object to a change in motion is called...
Inertia
True or false: When forces act in the same direction, you simply subtract them.
False
If you drop a ball, the _________ force pulls Earth towards the ball.
Reaction
True or false: The combination of all forces acting on an object is called the net force.
True
True or false: The unit used to express Force is m/s.
False
True or false: A force can be defined as a pull or a push
true
True or false: In the formula F=ma, the letter m stands for mass.
True
True or false: All forces have size and direction.
True
What would happen to the planets if the Sun stopped exerting the force of gravity on it?
Planets would travel in a straight line away from the Solar System in the direction they were traveling when the force of gravity stopped acting upon them.