The unit used to measure speed is meters per second.
100
What is the definition of acceleration?
Acceleration occurs when an object changes speed or direction.
100
What is the definition of force?
Force is defined as a push or pull on an object.
100
What is Newton's first law?
Newton's first law states if there is no force acting on an object it will move with the same speed and direction.
200
The resistance of an object to change its motion is ___________?
Inertia
200
What is the equation for speed?
The equation for speed is speed=Distance/Time.
200
How do you find acceleration of an object?
Acceleration of an object can be found by dividing the change in speed by time. Acceleration=change in speed/time.
200
What is the sum of all forces acting on an object?
The sum of all forces on an object is net force.
200
Newton's second law describes how to calculate force. What equation does he give?
Newton's second law states Force=mass X acceleration.
300
How do you determine if an object is moving?
You can tell if an object is moving by its change in position relative to a reference point.
300
What is the speed of a car traveling 120 meters in 2 minutes?
This car is traveling 60 meters per minute.
300
What three things does acceleration refer to?
Increased speed,decreased speed, and a change in direction are things that acceleration refers to.
300
What force is needed to accelerate a 60kg object at 3m/s2?
The force needed is 180N.
300
State Newton's third law of motion.
Newton's third law of motion states that for every action there is an equal and opposite reaction.
400
What would a motion graph look like if the object was moving at a constant speed? Draw this graph.
The motion graph would be a straight line with a constant slope.
400
Can you convert a speed of 120 meters per minute to meters per second?
120 meters per minute converted to seconds would be 2 meters per second.
400
If a runner accelerates his speed from 0.5 meters per second to 2.5 meters per second in a total of 2 seconds, what is his acceleration?
This runner is accelerating at 1 meter/second2.
400
Does it take more force to slow down or speed up a large truck or small car?
It takes more force to slow down or speed up a large truck because it has more mass.
400
What does the term friction refer to?
Friction is the force that exists between any two pieces of of matter than are in contact with each other.
500
What could we say about an object's motion if its motion graph shows a line with a downward slope and then an upward slope? Draw this graph.
This graph first shows an objects deceleration then its acceleration.
500
An airplane is traveling at 4000mph for 20,000 miles. How long did it take this airplane to reach its destination?
This plane took 5 hours to reach its destination.
500
A Porsche 911 can go from a speed of 0 mph to 60 mph or from 0 meters per second to 27.8 meters per second in approximately 3 seconds. What is its acceleration? Round your answer to the nearest tenth.
This Porsche 911 accelerates at approximately 9.3 meters/second2.
500
What is an unbalanced force?
An unbalanced force results in a net force of nonzero.
500
What is the force on a 50kg object accelerating at 4m/s2?