Introduction to Physics

What is the definition of force in physics?

• Interaction that can change the state of motion or the shape of an object

• Force is the speed of a moving object

• Force is the temperature of an object

• Force is the amount of matter in an object

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the unit of measure for force in the international system?

• second

• meter

• newton

• kilogram

What is the formula to calculate force?

• F = m * a

• F = m ^ a

• F = m / a

• F = m + a

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the difference between net force and balanced force?

• Net force is the sum of all forces acting on an object, while balanced force is when opposing forces cancel each other out, resulting in equilibrium.

• Net force is when opposing forces cancel each other out, while balanced force is the sum of all forces acting on an object

• Net force and balanced force are interchangeable terms that mean the same thing

• Net force is when forces do not cancel each other out, while balanced force is the sum of all forces acting on an object

Tags

NGSS.MS-PS2-2

Which Newton's law describes the action and reaction of forces?

• The first law of Newton

• The second law of Newton

• The fourth law of Newton

• The third law of Newton

Tags

NGSS.MS-PS2-1

What is the resultant force of two opposite forces of equal magnitude?

• Negative

• Infinite

• Zero

• Ten

What is friction and how does it affect force?

• Friction is the force that drives the movement of an object across a surface and affects the force by increasing the object's speed.

• Friction is the resistance that opposes the movement of an object across a surface and does not affect the force.

• Friction is the force that keeps an object's speed constant on a surface and does not affect the force.

• Friction is the resistance that opposes the movement of an object across a surface and affects the force by reducing the speed or stopping the movement of an object.

What is the difference between gravitational force and normal force?

• Gravitational force is the attraction between two objects due to their mass, while normal force is the force exerted by a surface on an object that is in contact with it.

• Gravitational force is the force that keeps an object at rest, while normal force is the force that makes it move

• Gravitational force is the force acting on a moving object, while normal force is the force acting on an object at rest

• Gravitational force is the force acting horizontally, while normal force is the force acting vertically

Tags

NGSS.MS-PS2-4

How is the force required to move an object with a certain acceleration calculated?

• Force = mass - acceleration

• Force = mass x acceleration

• Force = mass / acceleration

• Force = mass + acceleration

Tags

NGSS.HS-PS2-1

What is the importance of understanding forces in the study of physics?

• It helps to understand the behavior of objects in the physical world.

• It is irrelevant to understand forces in physics

• It has no importance in the study of physics

• Forces do not affect the behavior of objects

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS2-5

NGSS.MS-PS3-1