FRICTION & GRAVITY

friction

500

Is friction good or bad?

Friction can be a bad thing, or it can be a good thing

gravity

500

What is the science behind gravity?

newton's law

weight & mass

100

What are some examples of mass and weight?

If an object's mass is 60 kgs, then its Weight would be 600 Newtons but when taken to the Moon, this object will have a weight of 100 newton as the gravity of the moon is 1/6th that of the Earth.

200

What is the difference between weight and mass?

Mass is a fundamental measurement of how much matter an object contains. Weight is a measurement of the gravitational force on an object.

300

How is weight related to mass?

the weight of an object is directly proportional to its mass'.

400

Is mass and weight the same?

Your mass is the same no matter where you go in the universe

500

What are 5 differences between mass and weight?

Mass is the amount of matter in a body, whereas weight is the strength with which gravity pulls on that matter. Mass is an inherent characteristic of the body that remains constant regardless of where the body is. Whereas weight is a force, the formula for force is (Mass * Acceleration).

projectile motion

100

Which of Newton's laws is projectile motion?

 first law of motion

200

What are the two 2 types of projectile motion?

horizontal and vertical motion

300

what is the most important thing in projectile motion

the angle of the launch

400

will a projectile thrown horizontally land at the same time a object is dropped straight down at the same time and force

yes

500

what is the meaning of projectile motion

when a projectile is thrown horizontally

air resistance

500

What 3 factors affect air resistance?

its speed, its cross-sectional area, its shape and the density of the air.