According to Newton’s First Law of Motion, an object in motion will stay in at the same speed and direction unless acted upon by what kind of force?(1 point)
Responses
inertia
inertia
a balanced force
a balanced force
an unbalanced force
an unbalanced force
a net force
According to Newton's First Law of Motion, an object in motion will stay at the same speed and direction unless acted upon by an unbalanced force.
A runner exerting a running force of 325 N to the right is met with an air resistance force of 45 N to the left. What is the net force of the runner?(1 point)
Responses
45 N
45 N
370 N
370 N
325 N
325 N
280 N
To find the net force on the runner, we need to subtract the force of air resistance (which is in the opposite direction) from the running force exerted by the runner.
Running force = 325 N to the right
Air resistance force = 45 N to the left
Net force = Running force - Air resistance force
Net force = 325 N - 45 N = 280 N
Therefore, the net force on the runner is 280 N.
Which of the following describes velocity? (1 point)
Responses
Velocity is the resistance of an object to a change in its speed or direction.
Velocity is the resistance of an object to a change in its speed or direction.
Velocity is a force that changes an object's speed and/or direction.
Velocity is a force that changes an object's speed and/or direction.
Velocity is the sum of all of the forces acting on an object.
Velocity is the sum of all of the forces acting on an object.
Velocity is the speed of an object in a particular direction.
Velocity is the speed of an object in a particular direction.
Velocity is the speed of an object in a particular direction.
An object that is stationary is the result of what kind of force(s)?(1 point)
Responses
balanced forces
balanced forces
no forces
no forces
net forces
net forces
unbalanced forces
An object that is stationary is the result of balanced forces.
A pushing force of 7 N to the right is applied to a book on a table. A frictional force of 3 N is applied in the opposite direction. In which direction will the book move? (1 point)
Responses
The book will move to the right.
The book will move to the right.
The book will stay stationary.
The book will stay stationary.
More information is needed.
More information is needed.
The book will move to the left.
The book will move to the left.
To determine the direction in which the book will move, we need to compare the pushing force and the frictional force.
Pushing force = 7 N to the right
Frictional force = 3 N to the left
The pushing force is greater than the frictional force, so the net force on the book is in the right direction. Therefore, the book will move to the right.