The correct response is:
It changes both the direction and the speed of the ball.
The force applied by the tennis racket on the ball alters both its velocity (speed and direction) as the ball is hit.
A tennis player swings and hits the ball away. How does the force of the tennis racket affect the motion of the ball?(1 point)
Responses
It does not change the speed or the direction of the ball.
It does not change the speed or the direction of the ball.
It changes the direction of the ball but not the speed.
It changes the direction of the ball but not the speed.
It changes the speed of the ball but not the direction.
It changes the speed of the ball but not the direction.
It changes both the direction and the speed of the ball.
5 answers
A net force is applied to a moving object. Which statement best describes the effect of the force?(1 point)
Responses
The force will cause a change in the direction of the object.
The force will cause a change in the direction of the object.
The force will cause the speed of the object to increase.
The force will cause the speed of the object to increase.
The force will cause a change in the momentum of the object.
The force will cause a change in the momentum of the object.
The force will cause the object to come to a stop.
Responses
The force will cause a change in the direction of the object.
The force will cause a change in the direction of the object.
The force will cause the speed of the object to increase.
The force will cause the speed of the object to increase.
The force will cause a change in the momentum of the object.
The force will cause a change in the momentum of the object.
The force will cause the object to come to a stop.
The best response is:
The force will cause a change in the momentum of the object.
This statement accurately reflects the effect of a net force on a moving object, as force is related to the change in momentum according to Newton's second law (F = ma). Changes in momentum can result from changes in speed, direction, or both.
What is the momentum of an object?(1 point)
Responses
the rate of change in the velocity of an object
the rate of change in the velocity of an object
the net force acting on the object
the net force acting on the object
the state of motion of an object with mass
the state of motion of an object with mass
the velocity of the object
Responses
the rate of change in the velocity of an object
the rate of change in the velocity of an object
the net force acting on the object
the net force acting on the object
the state of motion of an object with mass
the state of motion of an object with mass
the velocity of the object
The correct response is:
the state of motion of an object with mass.
Momentum is defined as the product of an object's mass and its velocity, which describes its state of motion. More formally, momentum (p) is given by the equation \( p = m \cdot v \), where \( m \) is mass and \( v \) is velocity.