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- @A ticker tape is produced where the dots are evenly spaced. This means the object was:
- Moving at a constant velocity
- Accelerating
- Stationary
-
- @The force that slows objects down while they travel on flat surfaces is:
- Friction
- Gravity
- Weight
-
- @The part of the ticker tape shown is for an object that is:
- #acc1
- Decelerating
- Accelerating
- Stationary
-
- @A ticker tape timer produces 50 dots in 1 second. How long will it take to produce 10 dots?
- 0.2 seconds
- 5 seconds
- 500 seconds
-
- @An object, deep in space, moves at a constant velocity because:
- There are no forces acting
- Gravity pulls it
- It is weightless
-
- @An object produces ticks on a ticker tape that get further apart. This means that it is:
- Accelerating
- Moving at a constant velocity
- Slowing down
-
- @An object accelerates from 30 m/s to 50 m/s in twenty seconds. What is the acceleration?
- 1 m/s
- 0.4 m/s
- 2.5 m/s
-
- @The slope (or gradient) of a velocity against time graph gives the:
- Acceleration
- Displacement
- Speed
-
- @If the force acting on a mass is doubled then the resulting acceleration is:
- Doubled
- Halved
- Four times as big
-
- @If a ticker tape is made by an object which is accelerating, then the dots:
- Get further apart
- Remain a constant distance apart
- Gradually get closer together
-
- @Acceleration is:
- the change in velocity over a period of time
- always a postive number
- the distance moved divided by the time it takes
-
- @Acceleration is a vector quantity because:
- it depends on the direction you are going
- the size (value) of the acceleration is important
- because its units are m/s
-
- @What is meant by the term 'terminal velocity'?
- An object accelerates up to a certain velocity, and then no more
- An objects acceleration continues to increase at a fixed rate
- The acceleration of an object falls by a constant amount
-
- @Rain drops, falling through the air, reach a certain speed and then go no faster. This is because:
- air resistance has a significant effect on them
- the are small and light and so are not accelerated by gravity
- they join together to form larger droplets
-
- @Objects on the Moon fall more slowly than those on the Earth because:
- The pull of gravity is less
- the Moon is further away from the Earth
- The Moon's atmosphere has less effect
-
- @If a force acts on an object then it:
- may move
- will start to move
- will come to a stop
-
- @What is the name of the acceleration force that keeps us on the ground?
- Gravity
- Electrostatic
- Air resistance
-
- @When writing down values for acceleration you must state:
- the size and direction
- the size, and explain what object is producing the force
- how big the force is
-
- @Frictional forces are:
- a negative accelerating force
- forces which always make acceleration forces larger
- nothing to do with accelerating forces
-
- @Another name for a negative accelerating force is:
- Friction
- Gravity
- Momentum