Section 1

Question 1

——– occurs when an object changes its position relative to a reference point

Answer 1

Motion occurs when an object changes its position relative to a reference point

Question 2

An important part of describing the motion of an object is describing how ——- it has moved

Answer 2

An important part of describing the motion of an object is describing how far it has moved

Question 3

This is called ——

Answer 3

This is called distance

Question 4

The S I unit for distance is the——

Answer 4

the SI unit for distance is the meter

Question 5

—– is the —— and —— of an objects change in position from the starting point

Answer 5

Displacement is the distance and direction of an objects change in position from the starting point

Question 6

You can describe the movement by the —— traveled and by the —— from the starting point

Answer 6

You can describe movement by the distance traveled and by the displacement from the starting point

Question 7

Speed is the —— an object travels per unit of ——-

Answer 7

Speed is the distance and object travels per unit of time

Question 8

Calculating speed
the S I unit for distance is the —— and the S I unit for time is the —— so the SI units of speed are measured in ——

Answer 8

The S I unit for distance is the meter (m) and the S I unit for time is the second (s) so the SI units of speed are measured in meters per second (m/s)

Question 9

Sometimes it is more convenient to express speed in other units, such as —— or in America ——

Answer 9

Sometimes it is more convenient to express speed in other units such as KM/HR or in America MPH

Question 10

Changing speed

usually speed is ———constant

Answer 10

Usually speed is not constant

Question 11

Average speed

average speed describes speed of —– when speed is ——

Answer 11

Average speed describe speed of motion when speed is changing

Question 12

Instantaneous speed a speedometer shows how fast a car is going at —— —— —– —— or at one ——-

Answer 12

Instantaneous speed

a speedometer shows how fast a car is going at one point in time or at one instant

Question 13

Graphing motion the motion of an object over a period of time can be shown on a —— graph

Answer 13

The motion of an object over a period of time can be shown on a distance-time graph

Question 14

Velocity is defined as —— ——- ——

Answer 14

Velocity is defined as speed with direction

Question 15

A moving object has a property called ——- that is related to how much ——- is needed to ——– its motion

Answer 15

A moving object has a property called momentum that is related to how much force is needed to change its motion

Question 16

The momentum of an object is the products of its mass and velocity momentum is given the symbol —–

Answer 16

The momentum of an object is the products of its mass and velocity momentum is given the symbol p

Question 17

When two objects had the same —— velocity the object with the ——–mass has the —- momentum

Answer 17

When two objects have the same velocity of the object with the larger mass has the larger momentum

Question 18

A —— ——- is needed to determine the position of an object

Answer 18

A reference point is needed to determine the position of an object