Science Tek

Are the forces acting on the object balanced or unbalanced? The man does a flip on the fly board.

(a)  

• unbalanced

• balanced

Answer explanation

The forces acting on the man doing a flip on the fly board are unbalanced. This is because, during the flip, the man is exerting force against gravity to lift off from the board and then gravity pulls him back down. These forces are not equal and opposite, hence they are unbalanced.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How will this object move?

• It will not move

• It will move in both directions

• It will move to the right

• It will move to the left

Answer explanation

The question asks about the movement of an unspecified object. Without any specific details about the object or forces acting on it, we cannot predict its movement. Therefore, the correct answer is that it will not move.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How will this object move?

• It will not move

• It will move in both directions

• It will move to the right

• It will move to the left

Answer explanation

Based on the question, the object will move to the right. The other options, such as not moving, moving in both directions, or moving to the left, are incorrect. The correct choice is that the object will move to the right, as indicated by the provided answer.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Shadell pushes a box 35 N to the right. Nazai pushes the box 25 N in the same direction. What is the net force?

(a)  

• 60 N unbalanced to the right

• 60 N balanced to the right

• 10 N balanced to the right

• 10 N unbalanced to the right

Answer explanation

The net force is the sum of individual forces acting in the same direction. Shadell pushes the box with 35 N and Nazai with 25 N in the same direction. To find the net force, add the two forces: 35 N + 25 N = 60 N. The net force is 60 N unbalanced to the right.

Tags

NGSS.MS-PS2-2

What is net force?

Answer explanation

Net force is the vector sum of all the individual forces acting on an object. When the net force is zero, it means that the object is in equilibrium, and there is no acceleration. In this question, the correct option is '0 N', which represents zero net force, indicating that the forces are balanced and the object is not accelerating.

Tags

NGSS.MS-PS2-2

Balanced or Unbalanced

Answer explanation

The question asks whether the term is balanced or unbalanced. The correct choice is 'unbalanced force' because it is a term used in physics to describe a force that causes a change in an object's motion or state of rest. Unbalanced forces result in a net force, leading to acceleration or deceleration of an object.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the net force?

(a)  

• 5 N left

• 30 N left

• 25 N right

• 55 N right

Answer explanation

The net force is the vector sum of all the individual forces acting on an object. To find the net force, you need to consider the magnitudes and directions of all the forces involved. In this case, the correct option is '25 N right', as it represents the net force acting on the object after considering all the individual forces and their directions.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the answer choices is not a characteristic of a balanced force?

• no change in motion

• moving at a constant speed

• causes a change in motion

• net force of zero

Answer explanation

A balanced force is characterized by no change in motion, moving at a constant speed, and a net force of zero. The option 'causes a change in motion' is not a characteristic of a balanced force, as balanced forces maintain the current state of motion.

If an object is not moving the forces acting upon it are _____________

Answer explanation

The correct answer is 'balanced'. When an object is not moving, it means that the forces acting upon it are in equilibrium. This means that the net force acting on the object is zero, and the forces are balanced. Balanced forces do not cause a change in motion, which is why the object remains stationary.

Tags

NGSS.HS-PS2-1

A ____________ is a push or a pull on an object.

Answer explanation

The correct answer is 'force'. In physics, a force is defined as a push or a pull on an object. It is a vector quantity, meaning it has both magnitude and direction. Therefore, the statement in the question is accurately describing the concept of force.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2