Labster 5 - Law of Universal Gravitation: Use gravity to orbit the moon

Your weight would increase and your mass would stay the same

How would your weight and mass change if you were standing on a planet that was twice the size of Earth?

Newton’s 2nd law of motion

Which law conncets the acceleration of an object to the force acting on it?

g is directly proportional to M

How are acceleration g and mass M related?

an object orbiting the earth is in constant free fall but never hits it

Which of the following statements is correct?

a. the weight of the orbiting object is zero

b. an object orbiting the earth is in constant free fall but never hits it

c. the gravitational force acting on an orbiting object is zero

d. a spacecraft needs to continually burn its engines to stay in orbit

centripetal force

what is the name of a force that makes a body follow a curved path?

g - 1/r²

what is your guess for the distance dependence of g?

Fg - 10^-9 N

what is the approximate gravitational force between newton and an apple on his workbench?

approximately 90 earth days

Speaking of mercury, approximately how long is one year on the planet closest to the sun? The sizes of the objects in our model of the solar system are not to scale, however, the relative orbital periods around the sun are. So you can answer this question by counting the revolutions of mercury during one earth year.

cycloid

Which of the following curves is not a conic section and is there, not a possible trajectory?

a. circle

b. parabola

c. hyperbola

d. cycloid