force

Question 1

force

Answer 1

a push or pull of one object on another object, measured in Newtons (N)

Spring constant x extension

Question 2

Acceleration

Answer 2

Changing speed of an object

Velocity/time = acceleration

Question 3

External force

Answer 3

Push or pull acting on an object

Question 4

Gravity

Answer 4

the force Fg about 10.0 m/s2

(Fgrav) is the mass of an object multiplied by a grav.
It is NOT just the acceleration of gravity

Question 5

At rest

Answer 5

Not moving

Question 6

In motion

Answer 6

Moving

Question 7

Newton’s first law

Answer 7

Objects do not change their movement without a force acting on them

Question 8

Newton’s Second Law : F=ma

Answer 8

Newton (N) = kg • m/s2
F = m x a
force = mass x acceleration.

Question 9

Constant

Answer 9

Not changing

Question 10

Velocity

Answer 10

Metres per second

Distance / time

Question 11

Constant acceleration

Answer 11

Vsquared x usquared = 2as

If there is no change in the velocity, we use this equation

Question 12

Weight

Answer 12

Weight = mass / 10 or 9.8

Question 13

Pull

Answer 13

To move something towards

Question 14

Push

Answer 14

Move something away

Question 15

Magnitude

Answer 15

Size of something

Question 16

Vector

Answer 16

Magnitude with a direction

Question 17

Air resistance

Answer 17

Force caused by air

Question 18

Unbalanced forces

Answer 18

Object is moving, total net force >0

Question 19

Balanced forces

Answer 19

Object is moving, total net force = 0

Question 20

free body diagram

Answer 20

drawing that shows the forces acting on an object

Question 21

Mass

Answer 21

the amount of matter or stuff of an object (measure in kg)

Question 22

Terminal velocity

Answer 22

the constant speed that a freely falling object reaches when the resistance (of the way which it is falling) stops further acceleration.

Question 23

Contact force

Answer 23

Objects are touching

Question 24

Non contact force

Answer 24

Objects are not touching

Question 25

Newton’s Third Law : Equal Reaction

Answer 25

If one object applies a force to a second object, then the second object will apply an equal and opposite force to the first object.

Question 26

In motion

Answer 26

Moving