Physics Test 1

If you know how long it takes for a planet to orbit the sun, what other piece of information can you figure out?

Jenny will not swing until she has a push - What law of motion?

Force is required to change an objects velocity

The greater the distance the weaker the gravitational force

All things fall at the same speed regardless of weight

An object at rest will remain at rest and an object in motion will stay in motion, unless a force is acting on it

What purpose do Satellites serve?

Physics is the study of how ______ acts on matter

Which scientist discovered the three laws of motion?

The greater the mass of the object the weaker its gravitational force

What is the equation for the Second law of motion

Even though the moon's mass is less than the Earth's, how does the moon's gravitational force act on Earth

What is the tendency of an object to resist acceleration?

Two cars are about to collide, both going 50 mph, one from the right and one the left, what direction will they travel?

Which is NOT a Force that acts on an object?

Physics includes the sutdy of motion, sound, heat, light, electricty, magnetism, and nuclear energy

On Earth, acceleration due to gravity is...?

The Earth's mass is greater than the Moon's mass. How does that affect their common center of mass in orbit?

To every action there is an equal and opposite reaction

What is matter?

When you walk, your foot pushes on the ground and the ground pushes back with equal force - What law of motion?

Two pick up trucks are about to collide, one is going 50 mph and the other is going 35 mph, which car has more momentum?

Galileo didn't have a clock to measure time, what did he use to keep track of time during his experiments?

The Earth's velocity is constant.

At what angle do projectiles travel the greatest distance?

Force is a push or a pull

If you push a small box and large box with the same force, the small box will move faster - Which law of motion?

The force of gravity decreases by the ________ of the distance

Planets travel faster when closer to the sun

What did Galileo observe when he rolled the ball down the ramp?

Momentum before collision is different than momentum after collision.

What is the rate of change of velocity per unit time?

What Principle is Galileo known for?

What is one of the two ingredients for good science?

Each planet orbits the Sun in a/an ___________ path

Who developed the 3 laws of planetary motion

A pick up truck is about to collide with a smart car, both are traveling 50 mph. Which has greater momentum?

Weight is how _______ acts on an objects mass.

Which equation represents the third law of planetary motion?

Velocity includes speed and ________.