Laws

Question 0

Constant velocity

Answer 0

Not accelerating, not changing its speed or direction

Question 1

1st

Answer 1

An object at rest stays at rest and an object in mooing stays in motion with constant velocity unless acted upon by an unbalanced force

Question 2

Objects in equilibrium….

Answer 2

Don’t accelerate, balanced forces

Question 3

Are forces needed to keep an object in motion?

Answer 3

NO!!!!!!

Question 4

An object can possibly be moving ——- with constant velocity and still be in equilibrium

Answer 4

Left/right

Question 5

1st law is also called

Answer 5

The law of inertia

Question 6

Inertia

Answer 6

Resistance of an object to changes in its velocity (acceleration)

Question 7

Inertia depends on —- only

Answer 7

Mass

Question 8

More mass

Answer 8

More inertia

Question 9

Less mass

Answer 9

Less inertia

Question 10

2nd

Answer 10

The acceleration of an object depends on the net force acting on the object as well as the mass of the object

Question 11

2nd law equation for FORCE

Answer 11

F= mass x acceleration

Question 12

Units for force

Answer 12

Newtons

Question 13

Net force

Answer 13

Add up all forces

Question 14

3rd law

Answer 14

For every action there is an equal and opposite reaction

Question 15

Forces between 2 different objects always occur in

Answer 15

Pairs

Question 16

Pairs of forces are called

Answer 16

Action reaction force pairs

Question 17

When A pushes on B, – pushes back!

Answer 17

B

Question 18

Characteristics of force pairs

Answer 18

• Equal in magnitude
• Opposite in direction
• Occur at the same time
• Neither force exists without the other
• the forces don’t cancel because they act on different objects
• A force exerted on a small mass produces a greater acceleration than the same force exerted large mass