Understanding Gravity and Orbits

Understanding Gravity and Orbits

Assessment

Interactive Video

Physics, Science

5th - 8th Grade

Practice Problem

Medium

Created by

Emma Peterson

Used 2+ times

FREE Resource

The video explains how gravity and curved space influence the motion of celestial bodies. It covers why objects like the Moon orbit Earth and how Einstein's theory of curved space affects planetary motion. The concept of escape velocity is introduced, along with how mass and distance impact space curvature. The video compares the orbits of Earth and Mars, highlighting differences in speed due to their distances from the Sun. It concludes with a method used by scientists to detect planets by observing the wobble of stars caused by orbiting planets.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why doesn't the Moon fall to Earth?

Because it is moving too fast

Because it is made of rock

Because it is in orbit

Because it is too far away

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What concept did Einstein introduce to explain the movement of objects around massive bodies?

Curved space

Electromagnetic waves

Gravitational pull

Magnetic fields

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the fabric of space when a star like the Sun is placed in it?

It disappears

It flattens

It dips

It stretches

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To make a planet escape from a star's gravitational pull, how should its speed be adjusted?

Faster

Slower

Constant

It doesn't matter

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two factors that determine how much space is curved at any point?

Temperature and pressure

Size and shape of the object

Mass of the central object and distance from it

Speed and direction

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where is space curved more?

In the middle of the orbit

Far from the central object

Close to the central object

It is the same everywhere

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which planet is farther from the Sun, Earth or Mars?

Earth

Mars

They are the same distance

It varies

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