1st Semester Review: STEMscopes

Front

What is gravitational attraction?

Back

Gravitational attraction is the force that pulls two objects toward each other, proportional to their masses and inversely proportional to the square of the distance between them.

Tags

NGSS.MS-PS2-4

Front

How can the gravitational force between two objects be increased?

Back

The gravitational force can be increased by reducing the distance between the two objects.

Tags

NGSS.MS-PS2-2

Front

What type of galaxy is most likely to have active star formation?

Back

Spiral galaxies are most likely to have active star formation due to their abundant gas and dust.

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Tags

NGSS.MS-PS2-1

Front

If a girl exerts a force of 100 N on a sailboat, how much force does the sailboat exert back on her?

Back

The sailboat exerts a force of 100 N back on the girl, according to Newton's Third Law.

Tags

NGSS.MS-PS2-1

Front

What is velocity?

Back

Velocity is the rate of change in position with respect to time, including direction, e.g., 3 m/s forward.

Front

How do you calculate the time taken to travel a certain distance at a constant speed?

Back

Time = Distance / Speed.

Front

If an object is moving at 15 m/s, how long will it take to travel 300 meters?

Back

It will take 20 seconds to travel 300 meters.

Front

What is the difference between speed and velocity?

Back

Speed is the distance traveled per unit of time without direction, while velocity includes direction.

Front

What is an elliptical galaxy?

Back

An elliptical galaxy is a type of galaxy characterized by an ellipsoidal shape and a smooth, featureless brightness profile.