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# Physics

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Cards in this guide (20)
What is a push or a pull

A push or a pull is called force.

What is the overall force on an object after all forces are added together

The overall force on an object after all forces are added together is called the net force.

The tendency for objects to resist changes in their motion is called

Inertia

--- Shelbie Lynn!

---Apex.

Which of the following items has the most inertia while at rest

airplane

a dog

What is an example of push

Example of the word push: I push my kids in a buggy. Push the car to start it.

Throwing a baseball

If you know an object's mass and acceleration you can determine the net force being exerted on the object

True!.

Sierra Ambrosio"))

What factors determines the strength of the frictional force between two surfaces

how hard the surfaces push to gether the types of surfaces involved

Balanced forces do not change an object's direction

true

1 newton is equal to how many dynes

1 newton = 105 dyne

1 dyne = 1/105 newton

Microwelds are formed where

bumps from two surfaces come into contact.

Velocity is the change of speed and or direction of an object

FALSE.

Acceleration is the change of speed and/or direction of an object.

A cart loaded with groceries has less inertia because it has more mass than the empty cart

The statement is True.

An force can cause an object to change its speed and or direction

unbalanced

How many dynes are there in one newton

There are one lakh dynes in one newton or one newton=100000dynes

What is newtons Third law of motion is also known as action

Newton's Thrid Law of Motion is known as Action -Reaction Law.

Is push up a push or pull

It is a push and a pull. When you move your body towards the ground, it is a pull. A pull as in a pull to the ground. It is a push when you are moving away from the ground.

What are some items that have the least inertia while at rest

For apex it a penny

Which statements are true of all scientific endeavors

Which statements are true of all scientific endeavors

Mark walked 2 miles east then 1 mile north. How would you determine his total displacement

That would be the vector sum; in this case use Pythagorean theorem as east and north are perpendicular; total displacement is sqrt of 5

How do unbalanced force and balanced force differ

* Balanced: The vector sum of all forces on an object is zero. The object does not accelerate.* Unbalanced: The vector sum of all forces on an object is NOT zero, the object DOES accelerate.

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