Motion & Speed

Front

Velocidad en una dirección dada.

Back

Velocidad

Answer explanation

The term 'velocity' specifically refers to speed in a given direction, distinguishing it from 'speed', which is a scalar quantity. Other options like 'meter', 'motion', and 'slope' do not accurately describe this concept.

Front

Inclinación de una línea en un gráfico

Back

Pendiente

Answer explanation

The steepness or slant of a line on a graph is referred to as the slope. It indicates how much the line rises or falls as you move along the x-axis, making 'slope' the correct choice among the options.

Front

Tasa de cambio de velocidad

Back

Aceleración

Answer explanation

The rate at which velocity changes is known as acceleration. It measures how quickly an object's speed or direction changes over time, distinguishing it from speed, which is the magnitude of velocity.

Front

Unidad básica del SI de longitud

Back

metro

Answer explanation

The basic SI unit of length is the meter. It is the standard unit used to measure distance in the International System of Units (SI), while liter measures volume, gram measures mass, and Celsius measures temperature.

Front

Relación entre variables con un gráfico no lineal

Back

no lineal

Answer explanation

The term 'nonlinear' describes a relationship between variables whose graph is not a straight line. In contrast, 'linear' indicates a straight-line relationship, making 'nonlinear' the correct choice.

Front

Un lugar u objeto utilizado para la comparación para determinar si un objeto está en movimiento.

Back

Punto de referencia.

Answer explanation

A reference point is a fixed location or object used to determine if another object is in motion. It provides a basis for comparison, making it the correct choice for this question.

Front

Distancia recorrida en una unidad de tiempo.

Back

Velocidad

Answer explanation

The distance an object travels in one unit of time is defined as speed. Unlike velocity, which includes direction, speed only measures how fast an object is moving.

Front

Relación entre variables con un gráfico de línea recta

Back

Lineal

Answer explanation

The term 'linear' describes a relationship between variables whose graph forms a straight line. In contrast, 'nonlinear' indicates a curved relationship. Therefore, the correct answer is 'linear'.

Front

El estado en el que la distancia de un objeto a otro cambia.

Back

movimiento

Answer explanation

The correct answer is 'motion' because it describes the state where one object's distance from another is changing. Other options like velocity and speed relate to how fast something moves, but do not define the changing state itself.

Front

¿El país más resbaladizo?

Back

Grecia

Answer explanation

Greece is known for its slippery surfaces, particularly in coastal areas where wet stones and tiles can be hazardous. This characteristic makes it the slipperiest country among the options provided.