Biomechanical Movement C4.1/2

Question 1

What is linear motion?

Answer 1

A force who’s line of application passes through the centre of mass causing the resulting motion to be linear
e.g A ball hit directly in the centre results in linear motion
Linear motion can also be a curved line

Question 2

Name the three main Scalar Quantities.

Answer 2

Speed
Mass
Distance

Question 3

What is a scalar quantity?

Answer 3

Scalar quantities only have magnitude

Question 4

Name the 5 main vector quantities.

Answer 4

Displacement
Velocity
Acceleration
Momentum
Weight

Question 5

What is a vector quantity?

Answer 5

A vector quantity has magnitude & direction

Question 6

Define Distance.

Answer 6

The path a body takes as it moves from start to finish. Measured in metres.

Question 7

Define Displacement.

Answer 7

The shortest route in a straight line from start to finish. Measured in metres.

Question 8

Is Distance Scalar or Vector?

Answer 8

Scalar

Question 9

Is displacement vector or scalar?

Answer 9

Vector

Question 10

An athlete runs 800m what is the displacement and distance?

Answer 10

Distance = 800m
Displacement = 0m

Question 11

Define Speed. What is the equation for speed?

Answer 11

Speed is the rate of a change in position. Measured in metres per second
Equation: Speed(m/s) = Distance(m)/Time(s)

Question 12

Define velocity.

Answer 12

How fast a body travels in a certain direction

Question 13

Is Speed a scalar or vector quantity?

Answer 13

Scalar

Question 14

Is Velocity a scalar or vector quantity?

Answer 14

Vector