FORCES AT WORK

Question 1

What is a force?

Answer 1

A force is a push or pull that objects exert on each other.

Question 2

How can you determine a force a push?

Answer 2

A Push Force can be determined as a push if the object moves in the opposite direction of the force.

Question 3

How can you determine a force as a pull?

Answer 3

A pull force can be determined as a pull if the object moves towards the force.

Question 4

What are the five changes that take place when particular forces are acting?

Answer 4

1. Change the shape of an object
2. Change the direction of an object
3. Cause something to start moving
4. Cause something to stop moving
5. Speed or Slow down a object

Question 5

Contact Forces (Forces that…)

Answer 5

Forces that act between two objects that are in contact with one another

Question 6

Non Contact Forces (Forces that…)

Answer 6

Forces that can occur even between two objects that are not touching each other.

Question 7

Newton

Answer 7

An English physicist famous for his discussions about how forces effect motion.

Question 8

Spring balance

Answer 8

A device used to measure forces

Question 9

Balanced forces

Answer 9

A force that acts on a object in opposite directions

Question 10

Unbalanced Forces (A force that doesn’t have…)

Answer 10

A force that doesn’t have equal and opposite force acting on the same object

Question 11

What are the three possible results of a force acting on an object?

Answer 11

Sliding, attempting to slide or over one another

Question 12

What Forces are non contact?

Answer 12

Gravity, Friction, Electrostatic force and Magnetism force.

Question 13

How is the Size of a Force represented in a digram?

Answer 13

A force is represented in a digram using a force arrow or vector.

Question 14

What are examples Contact Forces?

Answer 14

Pushing, Pulling, Friction

Question 15

Friction

Answer 15

Friction is a force that slows down or prevents movement.

Question 16

Increasing Mass (More/Less)
Increasing surface area (More/Less) Friction

Answer 16

Increasing Mass More
Increasing surface area More Friction

Question 17

Why is friction important when walking?

Answer 17

Friction is important when walking because if we didn’t have it we wouldn’t manage to get a grip and stay upright.

Question 18

What is the name of the friction that acts on a object moving through the air?

Answer 18

Air resistance

Question 19

What is Gravity?

Answer 19

Gravity is the force that acts between two objects because they have mass. The force of Gravity on the earth is what pulls objects to the centre of the earth.

Question 20

Why does the Moon have less gravity then earth?

Answer 20

The Moon has less gravity than the earth because it is smaller

Question 21

Does distance increase the gravitational field?

Answer 21

no

Question 22

Applied Force

Answer 22

A force exerted by a person, animal or machine

Question 23

Elastic Force

Answer 23

A force that occurs when a springy object is squashed or stretched

Question 24

gravitational Field

Answer 24

The space around an object where its gravity is felt

Question 25

Net Force

Answer 25

The overall force of a object

Question 26

Do two positively charged objects repel?

Answer 26

Yes

Question 27

Which to atoms in a particle carry electric charge?

Answer 27

1. electrons
2. protons

Question 28

Do two negative charged objects repel?

Answer 28

yes

Question 29

A positively charged object is expected to attract a negative charge (True/False)

Answer 29

TRUE

Question 30

What is the unit used to measure forces? (Hint who created gravity?)

Answer 30

Newton

Question 31

What is an example of an unbalanced force acting in an everyday solution?

Answer 31

Kicking a football and it moves from one place to another