Dile's 1st 9 Week's Science Quiz

What are Newton's laws of motion?

• Newton's laws of motion are three physical laws that form the foundation for classical mechanics.

• Newton's laws of motion are two physical laws that form the foundation for classical mechanics.

• Newton's laws of motion are four physical laws that form the foundation for classical mechanics.

• Newton's laws of motion are five physical laws that form the foundation for classical mechanics.

Define motion.

• Change in shape of an object over time.

• Change in position of an object with respect to its surroundings over time.

• Change in color of an object with respect to its surroundings over time.

• Change in speed of an object over time.

What is speed?

• Speed is the measure of how quickly an object changes direction or the time it takes to change direction.

• Speed is the measure of how far an object moves or the time it takes to cover a given distance.

• Speed is the measure of how slowly an object moves or the distance it covers in a given amount of time.

• Speed is the measure of how quickly an object moves or the distance it covers in a given amount of time.

According to Newton's first law of motion, an object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an external force. True or False?

• False

• Sometimes true

• Only for heavy objects

• True

How is speed calculated?

• Distance minus time.

• Distance plus time.

• Distance divided by time

• Time multiplied by distance.

What is the purpose of using graphs in science?

• Graphs are used to visually represent data and relationships between variables.

• Graphs are used to represent fictional data and relationships.

• Graphs are used to hide data and make it difficult to interpret.

• Graphs are used to confuse readers with unnecessary visualizations.

According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. True or False?

• False

• Acceleration is not related to force or mass

• Acceleration is directly proportional to mass and inversely proportional to force

• True

To evaluate observations, you must use ________

• hypothesis

• critical thinking

• measurements

• models

distance / time = ________

• speed

• mass

• momentum

• acceleration

Which is a noncontact force?

• playing a piano

• hitting a ball with a bat

• a ball falling where you tossed it into the air

• karate expert breaking a stack of wood