A person exerts a force of 50 N on a door, what force does the door exert back on the person?
50 N
100
Newton's 2nd Law of Motion states that...
F = mass x acceleration
200
An unbalanced force acting on a 10 kg object will produce an acceleration of 8 m/s2. What is the value of the force?
80 N
200
When a force of 150 N acts on a mass of 30 kg, the resulting acceleration will be?
5 m/s2
200
A person sitting on a chair has a weight of 300 N. What force does the chair exert on the man?
300 N
200
What is required for an object to be in equilibrium?
zero acceleration/constant velocity
200
A force is...
A push or a pull
300
What is the weight of a 2 kg object drop from a bridge on earth?
20 N
300
Assuming you have the same unbalanced force acting on two objects (1 kg and 2 kg), which would have the greatest acceleration?
1 kg
300
A force of 100 N causes an object to accelerate at 5 m/s2. What is the mass of the object?
20 kg
300
What is inertia?
The tendency of an object to resist a change in motion.
300
A 20 kg object in outer space is attracted to a nearby planet with a net force of 200 N. What is the magnitude of the object's acceleration?
10 m/s2
400
What happens to the acceleration of an object if the force is increased?
Acceleration will increase
400
A 500 kg objects weighs 800 N on the Moon. What is the acceleration of gravity on the Moon?
1.6 m/s2
400
Newton's 3rd Law of Motion states that...
For every action there is an equal and opposite reaction.
400
Which object has the greatest inertia, a car moving at 80 mph or a tank not moving at all?
Tank
400
How would you describe the velocity of an object that is in equilibrium?
Constant
500
What is Newton's 1st Law of Motion
An object at rest will remain at rest and an object in motion will remain in motion unless an unbalanced force acts upon it.
500
An object with a mass of 0.5 kg starting from rest achieves a maximum speed of 40 m/s in in 0.1 second. What is the force that accelerates this object?
200 N
500
How is mass different than weight?
Weight is a force.
500
What is equilibrium?
a state in which forces are balanced.
500
Compare the inertia of a 10 kg mass to that of a 30 kg mass. How many times larger or smaller?