motion

Question 1

newtons 1st law

Answer 1

A body remains at rest or in uniform straight-line motion unless acted on by a force.

Question 2

newtons 2nd law

Answer 2

The time rate of change of the linear momentum of a body is equal to the force F applied to it

Question 3

newtons 3rd law

Answer 3

For every action, there is an equal
and opposite reaction

Question 4

what is newtons 1st law called

Answer 4

inertia

Question 5

newtons 2nd law formula

Answer 5

F = ma

Question 6

rotational motion

Answer 6

body rotates around a pivot.
the rate of change in the angle is the same for all
parts of the body, but the velocity and
acceleration along the body depend on the
distance from the centre of rotation

Question 7

translational motion

Answer 7

whole body moves in same direction. In pure translational motion all parts of the body have the same velocity and acceleration

Question 8

vertical jump

Answer 8

A vertical jump involves bending the knees to store elastic energy, then extending the legs to exert a downward force on the ground. The ground exerts an equal and opposite upward force (Newton’s 3rd law), producing an upward acceleration (Newton’s 2nd law). When this force exceeds body weight, the jumper leaves the ground. After take-off, only gravity acts, causing upward deceleration, a momentary stop at peak height, and downward acceleration until landing.