Chapter 11

Question 1

To get the overall picture of how fast an object moves over a journey, we calculate it’s _______________

Answer 1

Average speed

Question 2

A __________________ records the distance that an object has traveled at different moments in time

Answer 2

Distance line graph

Question 3

If an object moves at a constant speed in one direction, it is in __________________

Answer 3

Uniform motion

Question 4

True of false
In a distance line graph, the steeper the line, the higher the average speed

Answer 4

True

Question 5

True or false
The distance time graph of an object in uniform motion is an straight line

Answer 5

True

Question 6

True or false
A car moving at a constant speed in a circular path is in uniform motion

Answer 6

False

Question 7

We can use an ____________ to represent a force

Answer 7

Arrow

Question 8

It shows the _______________ of the force

Answer 8

Direction

Question 9

A force can change the ___________ and direction of motion of a object

Answer 9

Speed

Question 10

The attraction between two magnets is an example of ______________ force

Answer 10

Non-contact

Question 11

A _______________________________ can be used to measure the size of a force the unit of the force is _____________

Answer 11

Spring balance newton

Question 12

True or false
A force is required to cause an object to move from rest

Answer 12

True

Question 13

True or false
If two forces of the same size in the same direction act on an object, the forces are balanced

Answer 13

False

Question 14

If the forces acting on an object are balanced, the object will stop moving

Answer 14

True