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A force is
a spring
an engine
a movement
a push or pull
Which answer shows three non-contact forces?
magnetism, gravity, friction
gravity, friction, upthrust
gravity, static electricity, magnetism
upthrust, static electricity, friction
The unit of force is the:
newton
kilogram
gram
metre
A force can be measured using:
a stop clock
a ruler
a thermometer
a force meter
A boat will float because
gravity does not work over water.
it is built out of light materials.
upthrust pushes against its weight.
it has air inside it.
You can find the volume of the object in the can by:
measuring the object and multiplying the numbers.
measuring the volume of water it displaces.
weighing the object.
using a thermometer.
An elastic material
does not stretch.
stretches and stays in its new shape.
stretches and then goes back to its original shape.
cannot be squashed.
What are the units for weight and mass?
weight - newtons mass - kilograms
weight - kilograms mass - newtons
weight - kilograms mass - kilograms
weight - newtons mass - newtons
Which is true?
Your weight would be the same on the Earth and on the Moon.
Your mass would be the same on the Earth and on the Moon.
Your weight would be more on the Moon than on the Earth.
Your mass would be less on the Moon than on the Earth.
What do most force meters have inside them?
a light bulb
wires
a battery
Which of the following sentences about friction is not correct?
Friction can make an object get hotter.
Friction wears car tyres away.
Friction slows down a ball rolling in grass.
Friction can speed up a falling object.
Which of these would produce the most friction when they rub together?
a rough surface and a smooth one
two smooth surfaces
two rough surfaces
two smooth surfaces with oil between them
Which example shows unhelpful friction?
friction between a tyre and the road
friction in the wheel axles of a bicycle
friction between paper and the point of a pencil
friction between your shoes and the floor
Which of the following is not an example of a lubricant?
grease for bicycle chains
rubber on car tyres
water on swimming pool tiles
oil in a car engine
The speed of a car is a measure of how _________ it is travelling. Which is the missing word?
far
fast
long
high
If a car goes faster:
the thinking distance does not change.
its stopping distance increases.
its braking distance does not change.
its braking distance gets less.
Which of these factors will help a car to stop quickly?
a tired driver
going uphill
worn tyres
a wet road
This graph shows the distance moved by someone catching a bus. Which part of the graph shows the person waiting at the bus stop?
a to b
b to c
c to d
d to e
A foce can be a colour direction flavour pull( colour, direction, flavour, pull ) or push shape speed( push, shape, speed ) .
Forces can change the shape, colour direction flavour( colour, direction, flavour ) or pull push speed( pull, push, speed ) of things.
Which of these is an example of useful friction?
shoes on floor
in an engine
axles in a bike
wet road
Select all the ways to increase the friction between two surfaces.
make surfaces rougher
use oil
make surfaces smoother
use water
Which pictures shows balanced forces?
A
B
C
What will happen to the speed of the car?
speed up
slow down
stay the same
What will happen to the speed of the boat?
Select all the correct statements.
Mass is the amount of substance in something.
Weight is the amount of substance in something.
Your mass would be the same on the Earth and the Moon.
Your weight would be the same on the Earth and the Moon.
Mass is a force.
Rizwan cycled to his friend’s house. This distance/time graph shows his journey. How far is it from Rizwan’s house to his friend’s house?
1 mile
2 miles
3 miles
4.5 miles
Rizwan cycled to his friend’s house. This distance/time graph shows his journey. Rizwan cycled down a steep hill on his journey. Which part of the graph shows this?
Between 0 and 10 minutes
Between 10 and 30 minutes
Between 36 and 50 minutes
Between 50 and 54 minutes
Rizwan cycled to his friend’s house. This distance/time graph shows his journey. Rizwan stopped for a rest during his ride. How long did he stop for?
4 minutes
6 minutes
8 minutes
10 minutes