Adolygu Ffiseg 10

• Physics
• Upper Secondary (Key Stage 4)
• GCSE

Adolygu Ffiseg

Year 11

Beth yw Unedau Grym?

1. Newton
2. Meter
3. Joule
4. Kilogram

P un o'r cynlynol sydd yn scalar quantity?

1. Bunaedd
2. Cyflymiad
3. Grym
4. Tymheredd

Pa ffynhonell sydd yn cynhyrchu y mwyaf o carbon deuocisd

1. Glo
2. Niwclear
3. Nwy Naturiol
4. Geothermal

Pa ffynhonell sydd angen drillio i fewn i cramen y ddaear?

1. Llanw
2. Biomas
3. Nwy Naturiol
4. Biodanwydd

Pa ddeunydd sydd angen ar gyfer pwerdai niwclear?

1. Wranium
2. Olew
3. Glo
4. Geothermal

Pa hafaliad sydd yn cyfrifo gwrthiant cylched?

1. P = V x I
2. V/I = R
3. ρ = m/v
4. v = f × λ

Pa hafaliad sydd yn cyfrifo pwer cylched?

1. P = V x I
2. V/I = R
3. ρ = m/v
4. v = f × λ

Pa hafaliad sydd yn cyfrifo dwysedd deunydd ?

1. P = V x I
2. V/I = R
3. ρ = m/v
4. v = f × λ

What does the slope of a distance-time graph represent?

1. Speed or velocity
2. Distance
3. Time
4. Acceleration

What does a horizontal line in a distance-time graph indicate?

1. The object is accelerating
2. The object is moving backwards
3. The object is moving at a constant speed
4. The object is at rest

What does a steeper slope in a distance-time graph indicate?

1. Acceleration
2. Faster speed
3. Slower speed
4. No movement

What does a curved line in a distance-time graph indicate?

1. Changing speed or acceleration
2. No movement
3. Constant speed
4. Instantaneous speed

How can you calculate the speed from a distance-time graph?

1. Add the distance and time
2. Divide the change in distance by the change in time
3. Multiply the distance by the time
4. Subtract the distance from the time