In which situation are unbalanced forces acting on an object?(1 point)
Responses
Two people stand on the same side of a large tire. Both people pull the tire with equal force.
Two people stand on the same side of a large tire. Both people pull the tire with equal force.
Two people stand on opposite sides of a large tire. Both people push the tire with equal force.
Two people stand on opposite sides of a large tire. Both people push the tire with equal force.
Two people stand on the same side of a large tire. One person pushes the tire and the other pulls the tire with equal force.
Two people stand on the same side of a large tire. One person pushes the tire and the other pulls the tire with equal force.
Two people stand on opposite sides of a large tire. Both people pull the tire with equal force.
Two people stand on the same side of a large tire. One person pushes the tire and the other pulls the tire with equal force.
Newton's First Law Quick Check
2 of 52 of 5 Items
Question
What is inertia?(1 point)
Responses
a force that acts on an object at rest
a force that acts on an object at rest
the speed and direction of an object in motion
the speed and direction of an object in motion
the motion of an object
the motion of an object
an object’s resistance to a change its motion
an object’s resistance to a change its motion
A balloon floats inside a stopped car. When the car starts moving forward, the balloon appears to move backward relative to the car. Which statement best explains this observation?(1 point)
Responses
Inertia prevents the force of the car from acting on the balloon.
Inertia prevents the force of the car from acting on the balloon.
The car moves forward, while inertia keeps the balloon in place.
The car moves forward, while inertia keeps the balloon in place.
The force of inertia on the balloon balances the force from the motion of the car.
The force of inertia on the balloon balances the force from the motion of the car.
The motion of the car creates an unbalanced backward force on the balloon.
The motion of the car creates an unbalanced backward force on the balloon.
The motion of the car creates an unbalanced backward force on the balloon.
Which statement best explains why a paper airplane eventually falls to the ground?(1 point)
Responses
The unbalanced forces of air resistance and gravity slow the airplane and pull it down.
The unbalanced forces of air resistance and gravity slow the airplane and pull it down.
Inertia slows the airplane and pulls it down.
Inertia slows the airplane and pulls it down.
Inertia prevents new forces from acting on the airplane to keep it up.
Inertia prevents new forces from acting on the airplane to keep it up.
The force from throwing the airplane loses strength as the airplane moves.
The unbalanced forces of air resistance and gravity slow the airplane and pull it down.
ccording to Newton's First Law, what potential impact can an unbalanced force have on an object in motion? (1 point)
Responses
An unbalanced force will have no impact on an object in motion.
An unbalanced force will have no impact on an object in motion.
An unbalanced force can change both the object's direction and speed.
An unbalanced force can change both the object's direction and speed.
An unbalanced force can only change the object's speed.
An unbalanced force can only change the object's speed.
An unbalanced force can only change the object's direction.
An unbalanced force can change both the object's direction and speed.
The situation in which unbalanced forces are acting on an object is when two people stand on opposite sides of a large tire and both people pull the tire with equal force. To understand why this is the correct answer, let's break it down.
In physics, forces can be classified as balanced or unbalanced. Balanced forces are forces that are equal in magnitude and opposite in direction, resulting in no change in the object's motion. Unbalanced forces, on the other hand, are forces that are not equal or are acting in different directions, leading to a change in the object's motion.
In the first scenario, both people stand on the same side of the tire and pull with equal force. This situation leads to balanced forces because the forces are equal and acting in the same direction, canceling each other out.
In the second scenario, both people stand on opposite sides of the tire and push with equal force. Again, this results in balanced forces since the forces are equal and acting in opposite directions, canceling each other out.
In the third scenario, one person pushes the tire while the other pulls with equal force. Even though the forces are equal in magnitude, they act in opposite directions, which creates unbalanced forces. However, this is not the correct answer choice as the question specifically asks for forces acting on the same side of the tire.
Therefore, the correct answer is the fourth scenario where two people stand on opposite sides of the tire and both pull with equal force. In this case, the forces are equal in magnitude but act in the same direction, leading to unbalanced forces.