This is the force acting on all objects that have mass caused by the Earth.
What is weight.
100
This is the name of the force contained within strings or ropes.
What is tension.
100
What is the net force acting on a 1.0-kg object in free-fall?
What is 9.8 N.
100
If your textbook is in equilibrium, what can you say about all the forces acting on it.
The forces acting on the book are balanced, the net force is zero.
200
This is a physical model, which represents the forces acting on a system.
What is a free-body diagram.
200
There term for when there are no contact forces pushing up on an object AND its apparent weight is zero.
What is weightlessness.
200
Exerting an unbalanced force on an object will cause that object to _______.
What is accelerate.
200
A 45-kg child sits on a 3.2-kg tire swing. What is the tension in the rope that hangs from the tree branch?
What is 472 N.
200
You place a 7.5-kg television on a spring scale. If the scale reads 78.4 N, what is the acceleration due to gravity at that location?
What is 10.5 m/s^2
300
Another term for the vector sum of all the forces on a body.
What is the net force.
300
If weight is the downward force caused by gravity, this is the downward force caused by gravity at a particular instant in time.
What is the apparent weight.
300
Two forces that are in opposite directions and have equal magnitudes are often called.
What are interaction pairs.
300
What is the weight of a 225-kg space probe on the moon? The acceleration due to gravity on the moon is 1.62 m/s^2.
What is 364 N
300
Your new motorcycle weighs 2450 N. What is it's mass in kilograms?
What is 250 kg.
400
The state an object is in if the net force on it is zero.
What is equilibrium.
400
The term for when the drag force on an object equals the downward force of gravity.
What is terminal velocity.
400
This is the perpendicular force exerted by surfaces.
What is the normal force.
400
a 4500-kg helicopter accelerates upward at 2.0 m/s^2. What is the lift force caused by the propellers?
What is 53,100 N.
400
A raindrop with a mass 2.45 mg falls to the ground. As it is falling what magnitude of force does the Earth exert on it?
What is .000024 N
500
This is the tendency of an object to resist change. (Think Newton's First Law).
What is inertia.
500
In your own words state Newton's First Law.
"An object at rest will remain at rest, and an object in motion will remain in motion in a straight line with constant speed, if an only if the net force acting on that object is zero."
500
"For every action there is an equal and opposite reaction." This is a paraphrased version of which one of Newton's laws.
What is Newton's third law.
500
Mr. Mangan has a mass of 75-kg. His weight on the planet Jupiter is twice what it is on Earth. What the acceleration due to gravity on Jupiter?
What is 19.6 m/s^2.
500
Paul weighs 588 N on Earth, and is weightless in a space station. If he pushes off the wall with a vertical acceleration of 3.00 m/s^2, determine the force exerted by the wall during his push off.