geography

Question 2

What is a force?

Answer 2

A force is a push or pull acting on an object.

Question 3

True or False: Forces can only act on objects that are in motion.

Answer 3

False

Question 4

What unit is used to measure force?

Answer 4

Newton (N)

Question 5

Fill in the blank: A force that pulls objects toward each other is called ______.

Answer 5

gravity

Question 6

What are contact forces?

Answer 6

Forces that require physical contact between objects.

Question 7

Multiple Choice: Which of the following is NOT a type of contact force? A) Friction B) Tension C) Magnetic force D) Normal force

Answer 7

C) Magnetic force

Question 8

What is friction?

Answer 8

A force that opposes the motion of an object.

Question 9

True or False: Tension is the force exerted by a string, rope, or cable when it is pulled tight.

Answer 9

True

Question 10

List the two main categories of forces.

Answer 10

Contact forces and non-contact forces.

Question 11

What is a non-contact force?

Answer 11

A force that acts on an object without physical contact.

Question 12

Fill in the blank: The force that acts at a distance due to the mass of objects is called ______.

Answer 12

gravity

Question 13

Multiple Choice: Which force is responsible for keeping planets in orbit? A) Magnetic force B) Gravitational force C) Frictional force D) Tension

Answer 13

B) Gravitational force

Question 14

What is magnetic force?

Answer 14

A force that can attract or repel magnetic materials.

Question 15

True or False: Air resistance is a type of frictional force.

Answer 15

True

Question 16

What is the difference between static and kinetic friction?

Answer 16

Static friction prevents motion, while kinetic friction acts on moving objects.

Question 17

Fill in the blank: The force that acts perpendicular to a surface is called ______.

Answer 17

normal force

Question 18

What is the formula for calculating force?

Answer 18

Force = mass x acceleration (F = ma)

Question 19

Multiple Choice: Which of the following forces does NOT require contact? A) Gravitational force B) Friction C) Magnetic force D) Normal force

Answer 19

B) Friction

Question 20

What is buoyant force?

Answer 20

The upward force exerted by a fluid on an object submerged in it.

Question 21

True or False: An object will float if its weight is less than the buoyant force acting on it.

Answer 21

True

Question 22

What type of force is tension?

Answer 22

A contact force.

Question 23

Fill in the blank: The force that opposes the motion of an object sliding on a surface is called ______.

Answer 23

friction

Question 24

What is the role of gravity in our daily life?

Answer 24

It keeps us grounded and affects the weight of objects.

Question 25

Multiple Choice: Which of the following is a type of non-contact force? A) Friction B) Tension C) Gravitational force D) Normal force

Answer 25

C) Gravitational force

Question 26

What is the effect of increasing mass on gravitational force?

Answer 26

Increasing mass increases the gravitational force.

Question 27

True or False: Forces can be balanced or unbalanced.

Answer 27

True

Question 28

What happens when forces are balanced?

Answer 28

The object remains at rest or moves at a constant velocity.