# Often asked: An orange might roll off your cafeteria tray when you stop suddenly because of?

## Why might an orange roll off your cafeteria tray when you stop suddenly?

The orange roll off the tray due to inertia of motion. Explanation: As we suddenly stop, the tray and our body comes to rest instantly since they are in contact. The orange placed on tray keeps moving due to inertia of motion and hence rolls of your tray.

## What kind of friction occurs when a fish swims?

The kind of friction that occurs when a fish swims through water is fluid friction. The name alone is a giveaway since water is a fluid. By definition, fluid friction is the resistance to an object’s movement through a fluid, where a resistance to a movement through fluid is also termed as viscous resistance.

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## Which universal force is responsible for the repulsion between two positively charged particles?

The electromagnetic force, also called the Lorentz force, acts between charged particles, like negatively charged electrons and positively charged protons. Opposite charges attract one another, while like charges repel. The greater the charge, the greater the force.

## What property of matter that resists changes in motion is called?

Inertia is the tendency of an object to resist changes in its state of motion.

## What do you call the forces that cancel the effect of each other?

Grade 6 Forces and Motion

Forces that delete the effect of each other are called forces. unbalanced.

## When a pair of balanced forces act on an object?

When two forces acting on an object are equal in size but act in opposite directions, we say that they are balanced forces. If the forces on an object are balanced (or if there are no forces acting on it), this is what happens: a stationary object stays still.

## What forces act on a falling leaf?

The forces acting on a falling leaf are: gravity and air resistance.

## What must be applied to push or pull an object?

Force is defined as a push or pull acting on an object. Forces include gravity, friction, and applied force. Force causes changes in the speed or direction of motion. These changes are called acceleration.

## What is the net force acting on a falling object when it reaches terminal velocity?

An object reaches its terminal velocity when the air resistance or drag force becomes equal to the weight of falling object. In this condition, the object is moving with constant speed. So, Hence, net force acting on a falling object when it reaches terminal velocity is zero.

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## What are the 4 types of forces?

Fundamental force, also called fundamental interaction, in physics, any of the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay.

## What are the 5 forces of nature?

They are in no particular order gravity, electromagnetism, the weak nuclear force and the strong nuclear force.

## Which universal force is weakest?

Gravity is the weakest universal force, but it is the most effective force over long distances.

## What are the changes in motion?

Motion is a change in position measured by distance and time. Speed tells us the rate at which an object moves. Velocity tells us the speed and direction of a moving object. Acceleration tells us the rate at which velocity changes.

## What is the relationship between mass and inertia?

Mass is that quantity that is solely dependent upon the inertia of an object. The more inertia that an object has, the more mass that it has. A more massive object has a greater tendency to resist changes in its state of motion.

## Which would have the largest inertia?

Answer. A heavier body has greater inertia than a lighter body and a car has great inertia than pencil and book.