State the acceleration due to gravity, g, in units of Newtons per Meter Squred
9.8
100
An object at rest will _____ ______ _______ unless acted upon by an unbalanced force.
remain at rest
100
If the same force is applied, what will accelerate more, a ping pong ball or a basketball?
A ping pong ball will accelerate more.
100
For every action, there is an equal and opposite _____.
reaction
100
What is the weight in Newtons of coin that has a mass of 0.25 kg?
2.45 N
200
If an object starts with Vx=20 m/s, what is Vx after 5 seconds?
20 m/s
200
An object in motion will ____ _____ _____ in a ____ _____ unless acted upon by an unbalanced force.
remain in motion in a straight line
200
What will require more force to accelerate at 10 meters per second squared, a horse or an elephant?
An elephant will require more force.
200
All forces come in ______ - ______ ______.
action-reaction pairs
200
What is the mass of a person who weighs 600 N?
61.2 kg
300
If Vy starts at 25 m/s, what is Vy after 3 seconds?
-4.4 m/s
300
When the train moves forward and you feel yourself pulled towards the back of the train, are you an object at rest or an object in motion?
You are an object at rest.
300
How much force will it take to accelerate a 15-kg mass at 10 meters per second squared?
150 N
300
If the action is a hammer applying a force on a nail, what is the reaction?
a nail applying a force on a hammer
300
If person has a mass of 70 kg, what is their weight on the moon where g=1.6 meters per second squared?
112 N
400
If an object starts moving upwards at 30 m/s, approximately how many seconds will it take for the object to start falling back down?
between 3 and 4 seconds
400
When you are riding in a car and the driver steps on the brakes, you feel yourself being thrown towards the front of the car. Are you an object at rest or an object in motion?
You are an object in motion.
400
If a 600-N force is applied to a 12-kg mass, what will be its acceleration?
50 meters per second squared
400
If the action is a helicopter propeller pushing the air downwards, what is the complete description of the reaction?
the air pushing a helicopter propeller upwards
400
If a person weighs 185 N on Mars (g = 3.7 m/s/s), what is their mass.
50 kg
500
An object starts with Vx=10 m/s and Vy=40 m/s. How long will it take for the object to move 50 m in the x-direction?
5 seconds
500
What has more inertia, a car or a bicycle? Why?
A car has more inertia because it has more mass.
500
It takes 40 N of force to accelerate a certain mass at 10 meters per second squared. How much force will it take to accelerate twice as much mass at 5 meters per second squared?
40 N
500
If the reaction is a bat hitting a baseball in the northeast direction, what is the complete description of the reaction?
a baseball hitting a bat in the southwest dierection
500
If a person weighs 600 N on Earth, what do they weigh on Jupiter (g = 24.5 m/s/s)?