The same motor is used in rockets with different masses. The rockets have different accelerations. According to Newton’s second law, how is acceleration expected to change as the rocket mass increases? (1 point)
Responses
As rocket mass increases, acceleration increases.
As rocket mass increases, acceleration increases.
Acceleration cannot be predicted based on changes in mass.
Acceleration cannot be predicted based on changes in mass.
There are no changes in acceleration, as it would depend on the amount of force.
There are no changes in acceleration, as it would depend on the amount of force.
As rocket mass increases, acceleration decreases.
As rocket mass increases, acceleration decreases.
Different amounts of force are applied to the same boat over several trials, and the acceleration is measured. In a graph of acceleration versus net force, what does the slope of the graph represent? (1 point)
Responses
the mass of the boat
the mass of the boat
the speed of the boat
the speed of the boat
the inverse of the speed of the boat
the inverse of the speed of the boat
the inverse of the mass of the boat
the inverse of the mass of the boat
Several motorboats with the same mass are used in an experiment. The forces of the different motors versus their accelerations are graphed. What is the y-intercept of this graph? (1 point)
Responses
the velocity
the velocity
zero
zero
the inverse of the mass
the inverse of the mass
the mass
the mass
zero
Which situation describes an object that is accelerating?(1 point)
Responses
when the velocity increases
when the velocity increases
when equal forces act simultaneously
when equal forces act simultaneously
when the net force is zero
when the net force is zero
when the velocity is constant
when the velocity increases
Use the simulation to answer the question.
Force and Motion Basics (select Acceleration)
What happens to the acceleration when the net applied force acting on the box increases?
(1 point)
Responses
It increases.
It increases.
It becomes zero.
It becomes zero.
It decreases.
It decreases.
It remains the same.
It increases.
According to Newton's second law, the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. The formula for Newton's second law is F = ma, where F is the net force, m is the mass of the object, and a is the acceleration.
Therefore, as the rocket mass increases, the acceleration is expected to decrease. This is because for the same amount of force applied, a larger mass will require more force to achieve the same acceleration. So, option "As rocket mass increases, acceleration decreases" is the correct answer.