What is friction and what is it caused by? *2 answers

The force that opposes the sliding motion of two surfaces, Friction is caused by microscopic bumps called microwelds.

What is the definition of Motion?

When an object changes position relative to reference point

What is Acceleration and how is it calculated? *2 answers

Occurs when an object changes speed, direction, or both, Rate of change of velocity (Vf-Vi) divided by t

What is Newton's First law of Motion? (Law of Inertia)

Objects resist change in motion unless a force is applied

What is Newton's Second Law?

More mass an object has, the more force needed to move it

If a car traveled 3500 miles in three hours, what is the car's average speed? *Multiple answers

About 19.4 miles per minute, About 1166 miles per hour

What is the definition of Velocity?

Speed and direction of an object's motion

When does Net Force occur and what are the types? *2 answers

Types: Equal, Unbalanced, and Combined, When two or more forces act on an object at the same time

The tendency of an object to resist change in motion

A man rode his bike at 3m/s. After 8 s, he traveled 6m/s. What is his acceleration?

(6m/s - 3m/s) divided by 8 = O.38 m/s squared

What is the difference between Distance and Displacement? *2 answers

Distance is how far an object traveled, Displacement is change of distance and direction in position

What is Newton's third law of motion?

For every force, there is an equal or opposite reaction

What is the definition of Force?

A push or pull applied to an object

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Preparation for Physics Test

16 termsStudBud Administration22 plays

A science quiz to prepare yourself for an exam based on physics! (Motion, Acceleration, Forces, Friction, Inertia, Momentum, and Newton's Laws of Motion)

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Questions 16

Answers

1
What is friction and what is it caused by? *2 answers
The force that opposes the sliding motion of two surfaces
The force that opposes motion of objects through air.
Friction is caused by speed, size, and shape.
Friction is caused by microscopic bumps called microwelds.
2
How can you calculate Momentum?
Divide acceleration by time
Multiple mass by acceleration
Multiply mass by velocity
Divide mass by time
3
What direction does an object accelerate in?
The opposite direction of the force
The positive of the force
The negative of the force
The direction of the force
4
What is the definition of Motion?
The distance an object can travel per unit
Distance and direction of the change from relative position
When an object changes position relative to reference point
How far an object has traveled
5
What is Acceleration and how is it calculated? *2 answers
Occurs when an object changes speed, direction, or both
Rate of change of velocity (Vf-Vi) divided by t
Force that opposes sliding motion (Mass times acceleration)
Occurs when an two surfaces are passing each other
6
What is Newton's First law of Motion? (Law of Inertia)
Objects resist change in motion unless a force is applied
Acceleration is produced when a force acts on a mass.
The more mass, the more forced needed to be applied
For every action, there is an equal and opposite reaction
7
Which has the most momentum?
A bus
A chair
My cat
A can of soda
8
What is Newton's Second Law?
More mass an object has, the more force needed to move it
Momentum depends on velocity and mass
Objects have a tendency to resist change in motion
For every action, there is an equal and opposite reaction
9
If a car traveled 3500 miles in three hours, what is the car's average speed? *Multiple answers
About 19.4 miles per minute
About 58.3 miles per hour
About 1166 miles per hour
About 58.3 miles per minute
10
What is the definition of Velocity?
The course in which something moves along
Speed and direction of an object's motion
The average speed of an object
Acceleration of an object
11
When does Net Force occur and what are the types? *2 answers
When two objects are sliding against each other
Types: Equal, Unbalanced, and Combined
Types: Static, Sliding, Rolling and Fluid
When two or more forces act on an object at the same time
12
What is Inertia?
The tendency of an object to resist change in motion
A decrease in motion
The quantity of motion an object has
An increase in motion
13
A man rode his bike at 3m/s. After 8 s, he traveled 6m/s. What is his acceleration?
6m/s * 3m/s = 18 m/s squared
6m/s divided by 3m/s = 2 m/s squared
(6m/s - 3m/s) divided by 8 = O.38 m/s squared
8(3m/s + 6m/s) = 72 m/s squared
14
What is the difference between Distance and Displacement? *2 answers
Distance is the rate of change in position
Distance is how far an object traveled
Displacement is change of distance and direction in position
Displacement is a decrease in speed
15
What is Newton's third law of motion?
For every force, there is an equal or opposite reaction
For every action, a force will cause acceleration
Direction does not affect an object's velocity
Motion changes according to an object
16
What is the definition of Force?
A push or pull applied to an object
A decrease in the motion of an object
The change in direction of an object
When an object is on a friction-less surface

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