Year 7 Science – Forces 1
Practise naming contact and non-contact forces, reading simple force diagrams, telling mass from weight, and explaining magnets and simple machines in everyday life. 20 questions. 25 minutes.
Which of these forces acts on an object without the objects touching?
A cyclist squeezes the brake levers and the brake pads press on the wheel rims. Which force slows the wheels?
Sam uses the handle of a spoon to pry the lid off a paint tin. Which simple machine is the spoon acting as?
Two bar magnets are lined up so that their north poles face each other. What happens when they are brought close together?
A spring balance is used to measure the weight of a bag of apples. In which unit is the reading given?
Which object would a magnet pick up?
A box sits on the floor. A person pushes it to the right with a force of 10 N and the floor's friction pulls to the left with a force of 10 N. Which describes the forces on the box?
A trolley is pushed to the right with a force of 30 N. Friction acts to the left with a force of 10 N. What will happen to the trolley?
An astronaut travels from Earth to the Moon. Which quantity about the astronaut changes?
Mia tested a magnet by holding it at different distances from a pile of paperclips and counting how many it picked up. What conclusion fits her results?
| Distance from magnet (cm) | Paperclips picked up |
|---|---|
| 1 | 8 |
| 3 | 5 |
| 5 | 2 |
| 7 | 0 |
Iron filings are sprinkled around a bar magnet to map its field. Outside the magnet, which way do the field lines point?
Choose the word that completes each blank.
A force is a push or a 1, and it is measured in 2.
Blank 1: pull · spin · lift
Blank 2: kilograms · joules · newtons
Choose the word that completes each blank.
Friction is a 1 force and gravity is a 2 force.
Blank 1: non-contact · contact · balanced
Blank 2: balanced · non-contact · unbalanced
Choose the word or phrase that completes each blank.
In a fair test of friction on different surfaces, the type of surface is what we 1, and the mass of the block must stay 2.
Blank 1: measure · ignore · change
Blank 2: the same · as large as possible · different each time
Choose the word that completes each blank.
A magnet picks up objects made of 1, and two south poles 2 each other.
Blank 1: aluminium · copper · iron
Blank 2: attract · repel · ignore
Choose the word that completes each blank.
A wheelbarrow is an example of a 1, and a ramp to a loading dock is an example of an 2.
Blank 1: lever · pulley · wedge
Blank 2: inclined plane · wheel and axle · screw
Choose the word that completes each blank.
The mass of a rock is measured in 1 and its weight is measured in 2.
Blank 1: newtons · kilograms · metres
Blank 2: kilograms · grams · newtons
Circle 2 words in the sentence below.
Click the two non-contact forces in this list.
frictiongravitytensionmagnetismupthrust
Circle 2 words in the sentence below.
Click the two items that work as levers.
wheelbarrowflagpoleseesawramp
Circle 2 words in the sentence below.
A book rests on a table and does not move. Click the two forces that cancel each other out.
weightfrictionnormalmagnetism