Force, Motion, and Energy Study guide

question

Newton’s First Law
answer

An object remain at rest or move in a straight line with a constant speed unless acted on by a force. (Also known as The Law Of Inertia.)
question

Inertia
answer

measure of an object’s tendency to remain at rest or keep moving.
question

Force
answer

A push or pull.
question

Contact Force
answer

Objects that are touching.
question

Long Range Force
answer

Forces that include gravity, magnetism and electricity.
question

Balanced Force
answer

Opposite forces that are equal and doesn’t move and in opposite directions.
question

Unbalanced Force
answer

Forces that move in opposite directions that are not equal of strength.
question

Net force
answer

The difference between two forces.
question

Acceleration
answer

The acceleration of an object depends on the mass of the object and the amount of force applied to the object. The more mass of an object, the less of acceleration. The less mass, the greater of acceleration.
question

Newton’s Second Law
answer

Object acted on by an unbalanced force will accelerate in the direction of the force.
question

Formula for gravity
answer

Force(N) = mass x 9.8m/s^2
question

Weight
answer

Measures the pull of gravity. It changes depending how strong is gravity.
question

Mass
answer

A measure of the amount matter in an object. It never changes regardless of the location.
question

Friction
answer

Two objects that are rubbing against each other. It resists motion, always present between two object, and creates thermal energy.
question

Static Friction
answer

Keep stationary objects from moving on a surface.
question

Rolling Friction
answer

The type of friction that makes a tire turn and a ball roll.
question

Sliding Friction
answer

A friction between 2 surfaces that slide by each other.
question

Air Resitance
answer

Air molecules act on the forward moving surface of an object, slowing its motion.
question

Newton’s 3rd law
answer

For every action there is reaction. –Forces act in opposite directions –Action/reaction forces work on diffrent bodies. –Action/reaction forces occur at the same. Also known as The Law of Conservation Of Momentum.
question

Motion
answer

A change in position.
question

Distance
answer

The entire path on object takes or travels.
question

Distance’s Formula
answer

D =Speed x Time
question

Displacement
answer

The distance and direction between the starting point and stopping point.
question

Constant speed
answer

Speed that is the same at a given moment in time.
question

Instantaneous speed
answer

Speed at a particular time.
question

Velocity
answer

Speed in a particular direction.
question

Velocity’s Formula
answer

Distance/time
question

Acceleration’s formula
answer

Force(N)/mass(m)
question

Speed
answer

The distance divided by the time need to travel the distance.
question

Work
answer

It’s only done when a force acts on an object which displaces it or causes the movement of the object.
question

Work’s Formula
answer

Joules(J) = Force(N) x Distance(meter)

Get instant access to
all materials

Become a Member