P8

Question 1

What is displacement.?

Answer 1

It is the distance to an object directly to it so it is a vector because it gives a distance and a direction (directly to its endpoint).

Question 2

What is the equation for speed?

Answer 2

Distance/time

Question 3

Equation for acceleration?

Answer 3

V-u/t

Question 4

Equation for work done?

Answer 4

Work done = Force x distance

Question 5

Equation for the moment?

Answer 5

Moment = Force x perpendicular distance

Question 6

Equation for pressure?

Answer 6

P = F/A Pressure = Force / Area

Question 7

Equation for current ?

Answer 7

Current = charge / time

Question 8

Equation for specific heat capacity?

Answer 8

Mass x shc x temperature change

Question 9

Equation for energy ?

Answer 9

Energy = power x time

Question 10

Equation for Power?

Answer 10

Work done / time

Question 11

Equation for weight ?

Answer 11

Mass x gravitational field strength (9.81)

Question 12

Equation for density?

Answer 12

Density = Mass / Volume

Question 13

Equation for momentum

Answer 13

M = Mass X Velocity

Question 14

Equation for Kinetic Energy?

Answer 14

0.5 x Mass x Velocity*2

Question 15

What is newtons 3rd Law?

Answer 15

It states that when 2 objects collide/interact, they exert equal opposite forces on each other. The unit of force is Newton (N).

Question 16

Newton’s Second Law of Motion (Force)

Answer 16

The acceleration of an object depends on the mass of the object and the amount of force applied.