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Physics

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Section 1

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Speed

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Physics

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6 years ago

Date created

Mar 1, 2020

Cards (32)

Section 1

(32 cards)

Speed

Front

How fast something is going. The slope of a distance versus time graph.

Back

Normal Force (perpendicular)

Front

A support force exerted on an object resting on a solid surface.

Back

Average Speed

Front

A measure of the distance traveled in a given period of time.

Back

Newton's First Law of Motion

Front

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Back

Unbalanced Forces

Front

When the net forces on an object are greater than 0, the forces are unbalanced. Unbalanced forces cause an object to start moving, stop moving, speed up, slow down or change direction. Unbalanced forces cause a change in velocity and therefore, cause acceleration.

Back

Kinetic Energy

Front

Energy of Motion.

Back

Force

Front

A push or a pull.

Back

Thermal Energy

Front

Energy that comes from the temperature of matter.

Back

Net Force

Front

The combination of all the forces acting on an object.

Back

Balanced Forces

Front

Produce no change in the motion of an object and the net force is equal to 0.

Back

Gravitational Potential Energy

Front

Stored energy of position. A result of mass and height.

Back

Negative constant velocity

Front

Direction of movement is returning to the origin.

Back

Stationary

Front

At rest.

Back

Positive constant velocity

Front

Direction of movement is away from the origin.

Back

Work

Front

Work is the energy required to move an object against a force. Work is equal to the force times the distance the object moves. The SI unit for work is the joule.

Back

Joule

Front

The unit used for measuring work.

Back

Applied Force

Front

A push or pull on an object.

Back

Chemical Energy

Front

Energy stored in the bonds of chemical compounds (atoms and molecules). It is released in a chemical reaction. Batteries, biomass, petroleum, natural gas, and coal are examples of stored chemical energy.

Back

Newton's Second Law of Motion

Front

The second law states that the greater the mass of an object, the more force it will take to accelerate the object. Force = mass x acceleration or F=ma.

Back

Velocity

Front

How fast something is going in a certain direction. Example: 30 mph east

Back

Mechanical Energy

Front

The sum of kinetic and potential energy in an object that is used to do work. Energy in an object due to its motion or position, or both.

Back

Radiant Energy

Front

The energy of electromagnetic waves. It is a form of energy that can travel through space.

Back

Electrical Energy

Front

Energy created by electrons moving through an electrical conductor.

Back

Sound Energy

Front

Sound is produced when a force causes an object or substance to vibrate — the energy is transferred through the substance in a wave.

Back

Newtons (N)

Front

Units used to measure Force.

Back

Instantaneous Speed

Front

The speed at any instant of time.

Back

Gravity

Front

The force of attraction between any two objects that have mass. The strength of gravitational pull between two objects depends on the mass of the objects and the distance between them.

Back

Friction

Front

A force between two surfaces that are in contact with each other.

Back

Elastic Potential Energy

Front

Stored energy as a result of stretching or compressing.

Back

Nuclear Energy

Front

Energy in the nucleus of an atom.

Back

Acceleration

Front

The rate at which the velocity of an object is changing. Acceleration of an object may be a change in direction or a change in speed (slowing down or speeding up).

Back

Newton's Third Law of Motion

Front

The third law states that for every action, there is an equal and opposite reaction.

Back