Step 2

Physics 1

100

Four factors that affect braking distance negatively

Speed

Mass

Tyres

Brakes

Icy

Wet

200

Mass x Acceleration =

Force

300

Force / Area =

Pressure

400

Stopping distance = Braking distance + 

Thinking distance

500

What do also we call a N/m²

A Pascal

2

100

If we stretch plasticine does it deform elastically or inelastically?

Inelastically

200

Spring constant = Force / ?

Extension

300

A straight line passing through zero shows what type of relationship?

Directly proportional

400

Elastic potential energy = 

1/2 spring constant x extension²

500

Gravity pulls in on a star what force provides the opposite balancing force that keeps it stable?

Fusion

3

100

What three stars will our sun become at the end of its life?

Red giant 

White dwarf

Black dwarf

200

Which planet orbits the sun the fastest?

Mercury

300

I measure the current passing through an LDR and get 3 different values spread around the mean. What type of error will this be?

Random

Systematic

Zero

Random

400

I always get weighed on a morning. What type of error am I trying to reduce?

Random

Systematic

Zero

Random

500

The scales always say 1 pound before I stand on them. What type of error is this?

Random

Systematic

Zero

Zero

4

100

What is the range of these 4 numbers? 5, 7, 10 and 11

6

200

What is the uncertainty of these 4 numbers? 5, 7, 10 and 11

3

300

What do we call sound so high we can't hear it?

Ultrasound

400

Above what frequency can we not hear?

20 000Hz

500

What can we use ultrasound for in medicine?

Cleaning teeth

Prenatal scans

Breaking down kidney stones

Monitoring heart / blood flow

5

100

What is 0.0025 in standard form?

2.5x10^-3

200

What is conserved in a collision?

Momentum

300

What do air bags do to the time taken for a person's head to slow down?

Increases it

400

Why do we take an average?

To reduce the effect of random errors

500

What type of wave has areas of compression and rarefaction?

Longitudinal