In which situation are unbalanced forces acting on an object?(1 point)

Question

Responses

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 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 opposite sides of a large tire. Both people pull the tire with equal force.
Two people stand on opposite sides of a large tire. Both people pull the tire with equal force.

2. What is inertia?(1 point)
Responses

an object’s resistance to a change its motion
an object’s resistance to a change its motion

the speed and direction of an object in motion
the speed and direction of an object in motion

a force that acts on an object at rest
a force that acts on an object at rest

the motion of an object

3. 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

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 car moves forward, while inertia keeps the balloon in place.
The car moves forward, while inertia keeps the balloon in place.

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.

Inertia prevents the force of the car from acting on the balloon.

4. 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.

The force from throwing the airplane loses strength as the airplane moves.
The force from throwing the airplane loses strength as the airplane moves.

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.

5. According to Newton's First Law, what potential impact can an unbalanced force have on an object in motion? (1 point)
Responses

An unbalanced force can only change the object's speed.
An unbalanced force can only change the object's speed.

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 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 only change the object's direction.

Answer 1

Here are the correct responses to your questions:

1. In which situation are unbalanced forces acting on an object?

   • Two people stand on opposite sides of a large tire. Both people push the tire with equal force.
     (The forces are balanced when they are equal and opposite, which means no unbalanced forces are acting. The correct choice includes a situation where the forces are not equal, so this option does not apply. The unbalanced forces scenario could involve one person pushing harder or pulling harder than the other.)

2. What is inertia?

   • an object’s resistance to a change in its motion
     (This defines inertia accurately.)

3. 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?

   • The car moves forward, while inertia keeps the balloon in place.
     (This accurately describes how inertia affects the balloon's apparent motion.)

4. Which statement best explains why a paper airplane eventually falls to the ground?

   • The unbalanced forces of air resistance and gravity slow the airplane and pull it down.
     (This is the correct explanation of what happens to the airplane.)

5. According to Newton's First Law, what potential impact can an unbalanced force have on an object in motion?

   • An unbalanced force can change both the object's direction and speed.
     (This accurately reflects the consequences of unbalanced forces as described by Newton's First Law.)

Let me know if you need any further assistance!

Answer 2

1. Two people stand on the same side of a large tire. Both people pull the tire with equal force.

Answer 3

In the scenario where two people stand on the same side of a large tire and both pull the tire with equal force, the forces are balanced. Since the forces exerted by the two individuals are equal in magnitude and opposite in direction (assuming they are both pulling in the same direction), there are no unbalanced forces acting on the tire.

To have unbalanced forces, one person would need to pull with a greater force than the other, or one person should push while the other pulls.

So, that option does not represent a situation with unbalanced forces acting on the object (the tire).