Quick Rev Physics

Question 1

What is Newtons 3rd law of motion

Answer 1

When two objects interact with each other they exert equal and opposite forces on each other

Question 2

What does Newton’s first law state?

Answer 2

If the forces acting on an object are balanced, the resultant force on the object is zero

Question 3

What is suspended equilibrium?

Answer 3

If u suspend an object and then release it , it will come to rest directly below the point of suspension.The Center of mass is directly below the suspension

Question 4

Equation for constant speed

Answer 4

Speed(m/s) = distance travelled(m) / time taken (s)

Question 5

How to calculate acceleration?

Answer 5

a(m/s^2) = v-u(m/s)/t(s)

Question 6

Hooke’s Law

Answer 6

The extension of the spring is directly proportional to the force applied, as long as its limit is not exceeded

Question 7

Momentum equation

Answer 7

p (kg m/s) = m(kg) x v(m/s)

Question 8

What is Hooke’s law written as an equation?

Answer 8

force applied(N) = spring constant(N/m) x extension(m)