P5- acceleration, velocity

Question 1

what is distance?

Answer 1

the total length travelled, regardless of direction SCALAR

Question 2

what is displacement?

Answer 2

the distance travelled in a stated direction VECTOR

Question 3

examples of scalars?

Answer 3

mass, temp, power, energy

Question 4

what is a scalar?

Answer 4

size + no direction

Question 5

what is a vector?

Answer 5

size + direction

Question 6

examples of vectors?

Answer 6

Acceleration, force

Question 7

what is acceleration?

Answer 7

change in velocity of an object per unit

Question 8

what does a negative acceleration mean?

Answer 8

the velocity is decreasing ( object is decreasing)

Question 9

acceleration unit?

Answer 9

m/s2

Question 10

velocity unit?

Answer 10

m/s

Question 11

on a velocity graph what does a flat line mean?

Answer 11

CONSTANT SPEED

Question 12

on a graph how do you calculate the acceleration?

Answer 12

GRADIANT

Question 13

how do you calculate the distance on an velocity graph?

Answer 13

working out the area under the graph

Question 14

what is the average walking speed?

Answer 14

1.5 m/s

Question 15

what is the average running speed?

Answer 15

3 m/s

Question 16

what is the average cycling speed?

Answer 16

6m/s

Question 17

what is the average speed of a plane (in sky)?

Answer 17

250 m/s