Forces

Question 1

What is a force?

Answer 1

A forces is a push or pull

Question 2

What are the effects of forces?

Answer 2

Forces can:
- Change the movement of the object
- Change the shape of the object
- Change the direction
- Change the speed of the object

Question 3

What can forces do to an object?

Answer 3

Forces can change the state of rest of motion

Question 4

What are the units used in forces?

Answer 4

Forces [F]
Newton [N]

Question 5

Who was the unit “newton” named after

Answer 5

After the english scientist, Sir Isaac Newton

Question 6

What happens when a force is exerted in one direction?

Answer 6

There is a force that reacts to it in the opposite direction

Question 7

What are balanced forces?

Answer 7

Balanced forces are when the forces in a pair have exactly the same size and there’s no effect on the two objects

Question 8

What is are examples of balanced forces?

Answer 8

• A person standing still
• A book resting on a table
• A tug-of-war where neither side is winning

Question 9

What is an unbalanced force?

Answer 9

When one force in a pair is larger than the other and we see the effects on one of the two objects

Question 10

What are examples of unbalanced forces?

Answer 10

• A car accelerating
• A ball falling from a tree
• A person pushing a box

Question 11

What are the two types of forces?

Answer 11

• Contact forces
• Non-contact forces

Question 12

Is a force a vertical or horizontal quantity

Answer 12

Vertical

Question 13

Why is a force a vertical quantity

Answer 13

Because it has both magnitude and direction