P.E. - Chapter 4-5 Revision

Question 1

Mass

Answer 1

The amount of matter that makes up an object.

Question 2

Weight

Answer 2

The measure of gravitational force acting on a body.

Question 3

Linear Motion

Answer 3

Movement of the body where all parts move in the same direction at the same time along a line.

Question 4

Angular Motion

Answer 4

Movement of a body part around an axis of rotation.

Question 5

Distance

Answer 5

A path travelled by a body from point A to point B.

Question 6

Displacement

Answer 6

Change of position of a body.

Question 7

Speed

Answer 7

Distance divided by change in time.

Question 8

Velocity

Answer 8

Displacement divided by change in time.

Question 9

Acceleration

Answer 9

Rate of change of velocity over time.

Question 10

Projectile Motion

Answer 10

Looks at the factors that influence the flight path on a projectile.

Question 10

Magnus Effect

Answer 10

Deviation of a spinning object towards the direction of the spin.

Question 11

Moment of Inertia

Answer 11

The resistance of an object to changes in its angular motion.

Question 12

Angular Momentum

Answer 12

The quantity of angular motion of an object.

Question 13

Equilibrium

Answer 13

When all forces and torques are balanced.

Question 14

Stability

Answer 14

The ability of a body to resist a change in its current state of equilibrium.

Question 15

Balance

Answer 15

The state of equilibrium and the ability to control it.

Question 16

First Class Lever

Answer 16

The resistance and the force are on either side of the axis.

Question 17

Second Class Lever

Answer 17

The resistance is between the force and the axis.

Question 18

Third Class Lever

Answer 18

The force is between the resistance and the axis.

Question 19

Qualitative Analysis

Answer 19

Analysis of human movement involving non-numeric descriptions.

Question 20

Quantitative Analysis

Answer 20

Analysis of movement involving the use of numbers.

Question 21

Momentum

Answer 21

The motion possessed by a moving body.

Question 22

Impulse

Answer 22

Product of a force and the time period over which it is applied, which is equal to the change in momentum of an object.

Question 23

Force

Answer 23

A push or pull acting on an object.

Question 24

Inertia

Answer 24

The tendency of an object to resist change in it’s state of motion.

Question 25

Velocity

Answer 25

Displacement divided by the change in time.

Question 26

Coefficient of Restitution

Answer 26

A measure of elasticity of bodies involved in a collision.

Question 27

Newton’s First Law

Answer 27

A body will remain in at rest or continue in a state of constant motion unless acted upon by external forces.

Question 28

Newton’s Second Law

Answer 28

A force applied to an object will produce a change in motion in the direction of the applied force that is directly proportional to the size of the force.

Question 29

Newton’s Third Law

Answer 29

For every action there is an equal an opposite reaction.

Question 30

Torque

Answer 30

Force times lever arm.

Question 31

Conservation of Momentum

Answer 31

The total momentum of the system before the collision is equal to the total momentum after the collision.

Question 32

Field-testing Analysis

Answer 32

Outdoor environment analysis of subject.

Question 33

Laboratory Analysis

Answer 33

Indoor analysis of subject.