Forces and Motion

What is the most accurate definition of force?

Push or pull on an object

How are forces acting upon objects/matter represented?

Arrows

When a tug boat is trying to slow down and stop a cruise ship, what is the tug boat focusing on?

Momentum

An astronaut throws a heavy tool while floating completely still in deep space. What happens to the astronaut?

The astronaut would move backwards

When you throw an apple up into the air, it eventually falls back down to the ground. Why does this happen?

The force of gravity pulls the apple toward the Earth’s center

How does gravity affect the Earth and the moon?

All of the above

Which of the following forces act on matter without direct contact?

All of the above

If the masses of two objects increase, what happens to the gravitational forces?

Increases

If the radius between two objects increases, what happens to the gravitational force?

Decreases

What occurs if magnets with opposite poles are placed in proximity of each other?

Both magnets will move towards each other

What forces cause protons and neutrons to break apart from one another within a nucleus of an atom?

Weak nuclear forces

What happens during radioactive decay?

The protons or neutrons decrease transforming the atom into an isotope

What is Newton’s 2nd law?

Force= Mass x Acceleration

At which point in the pendulum swing does the pendulum have the highest level of potential energy?

Top of the swing

What is Newton’s 1st law?

Inertia

Which of Newton’s laws states that every action has an opposite and equal reaction?

Third