Year 9 Physics

Question 1

The formula for speed

Answer 1

Speed = distance/time

V=s/t

Question 2

How to get accurate results?

Answer 2

Repeat the experiment and find average
At eye level
Compare results
Where you measure from make sure it is the same every time

Question 3

What can affect your reaction time?

Answer 3

Phones, Multitasking, Eating, Noise, Sounds, Talking, Conversation, loss of Concentration, Day Dreaming, Smoking, Drugs, Bright Lights, Stress, Lack of sleep, Alcohol,

Question 4

What can distance be measured in?

Answer 4

Meters (m) or centimetres (cm)

Question 5

What can time be measured in?

Answer 5

Minutes (m) Seconds (s) or even Milliseconds (ms)

Question 6

Define decelerates

Answer 6

Decelerates-gets slower

Question 7

Define Constant speed

Answer 7

Constant speed-the same speed

Question 8

Define Accelerates

Answer 8

Accelerates-speeds up

Question 9

How do gas particles move in a balloon?

Answer 9

The gas particles inside the balloon move randomly.

Question 10

Fill in the blanks

They …… with the …….. balloon

Answer 10

They collide with the inside/sides/walls balloon

Question 11

Fill in the blanks.

This causes a …….. to be exerted on the …….. of the balloon

Answer 11

This causes a force to be exerted on the walls of the balloon.

Question 12

Fill in the blanks

This is …….. that keeps the balloon ………. .

Answer 12

This is the pressure that causes the balloon to be inflated