Educational worksheet on force and gravity for students.

Explanation:
Let’s go through each question one by one, using basic physics concepts about force and gravity.

1. Force refers to:
Force is a push or pull on an object. So the correct choice is:
→ *a push or pull*

2. The ability for an object to stay in motion:
This is inertia — an object’s tendency to resist changes in its motion.
→ *inertia*

3. A state of rest or uniform motion in a straight line unless a force acts on it:
This is Newton’s First Law — also called the law of inertia.
→ *inertia*

4. A pull or push that acts on an object is referred to as:
Again, this is the definition of force.
→ *force*

5. The force that enables us to remain on the Earth’s surface is:
That’s gravity — Earth pulls us down.
→ *gravity*

6. The force that causes resistance when rubbing sandpaper on wood is called:
That’s friction — it opposes motion between surfaces touching.
→ *friction*

7. ______ when a force moves an object over a distance.
When force causes movement over distance, work is done.
→ *work*

8. What is the fulcrum?
A fulcrum is the pivot point of a lever (like the support under a seesaw).
→ *point of a lever*

9. Name of the sphere:
The Earth is often called “the globe” or “the sphere,” but in science contexts, especially with gravity and forces, it's commonly referred to as:
→ *Earth*
However, looking at the options given (likely from the worksheet), the standard answer expected here is:
→ *Earth*
But wait — sometimes worksheets list “globe” or “planet”, but since the question says “name of the sphere”, and in physics/earth science, the sphere we live on is Earth.

Let me double-check typical school-level matching:

- Force → push or pull
- Inertia → tendency to stay in motion/rest
- Gravity → keeps us on Earth
- Friction → resistance when rubbing
- Work → force × distance
- Fulcrum → pivot point of lever
- Sphere → Earth (since it's roughly spherical)

All match standard Grade 5–7 science.

Final Answer:
1. a push or pull
2. inertia
3. inertia
4. force
5. gravity
6. friction
7. work
8. point of a lever
9. Earth