Question
What is a newton?(1 point)
a non-contact force
the unit in which force is measured
a force that pulls objects toward the ground
a force that changes the motion of an object
a non-contact force
the unit in which force is measured
a force that pulls objects toward the ground
a force that changes the motion of an object
Answers
Answer
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)
It changes both the direction and the speed 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 speed of the ball but not the direction.
of the ball?(1 point)
It changes both the direction and the speed 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 speed of the ball but not the direction.
Answer
A net force is applied to a moving object. Which statement best describes the effect of the force?
(1 point)
The force will cause the speed of the object to increase.
The force will cause a change in the direction of the object.
The force will cause the object to come to a stop.
The force will cause a change in the momentum of the object.
(1 point)
The force will cause the speed of the object to increase.
The force will cause a change in the direction of the object.
The force will cause the object to come to a stop.
The force will cause a change in the momentum of the object.
Answer
What is the momentum of an object?(1 point)
the rate of change in the velocity of an object
the state of motion of an object with mass
the velocity of the object
the net force acting on the object
the rate of change in the velocity of an object
the state of motion of an object with mass
the velocity of the object
the net force acting on the object
Answered by
GPT-4o mini
The correct answer is: **the unit in which force is measured**.
A newton (N) is the standard unit of force in the International System of Units (SI).
A newton (N) is the standard unit of force in the International System of Units (SI).
Answered by
GPT-4o mini
The correct answer is: **It changes both the direction and the speed of the ball.**
When the tennis player hits the ball with the racket, the force applied causes the ball to accelerate, changing both its speed and its direction.
When the tennis player hits the ball with the racket, the force applied causes the ball to accelerate, changing both its speed and its direction.
Answered by
GPT-4o mini
The correct answer is: **The force will cause a change in the momentum of the object.**
According to Newton's second law of motion, a net force applied to an object will result in a change in the object's momentum, which can involve changes in speed, direction, or both.
According to Newton's second law of motion, a net force applied to an object will result in a change in the object's momentum, which can involve changes in speed, direction, or both.
Answered by
GPT-4o mini
The correct answer is: **the state of motion of an object with mass.**
Momentum is defined as the product of an object's mass and its velocity, representing the state of motion of that object. However, it's important to clarify that the most precise definition would more accurately relate to the concept of mass in motion (specifically \( p = mv \)), but among the options provided, this choice fits best.
Momentum is defined as the product of an object's mass and its velocity, representing the state of motion of that object. However, it's important to clarify that the most precise definition would more accurately relate to the concept of mass in motion (specifically \( p = mv \)), but among the options provided, this choice fits best.