闪卡自测
What is a ruler?
所有闪卡
闪卡 1
问题
What is a ruler?
查看答案
答案
A ruler is a device used to measure small distances of a few centimetres.
闪卡 2
问题
True or False? Rulers measure to the nearest millimetre.
查看答案
答案
True. Rulers measure to the nearest millimetre.
闪卡 3
问题
What is the purpose of a tape measure?
查看答案
答案
A tape measure is appropriate for measuring distances of a few metres.
闪卡 4
问题
Which device can be used to measure distances of up to a kilometre?
查看答案
答案
A trundle wheel is used to measure large distances up to a kilometre.
闪卡 5
问题
What is a measuring cylinder?
查看答案
答案
A measuring cylinder is a device used to measure the volume of liquids.
闪卡 6
问题
What device can be used to measure time intervals?
查看答案
答案
A stopwatch can be used to measure time intervals.
闪卡 7
问题
Define the term reaction time.
查看答案
答案
Reaction time is how long it takes someone to react to an event.
闪卡 8
问题
True or False? Human reaction time has more of an impact on short-time measurements than long-time measurements.
查看答案
答案
True. Human reaction time has more of an impact on short-time measurements than long-time measurements.
闪卡 9
问题
State the equation for calculating an average.
查看答案
答案
The equation for calculating an average is
闪卡 10
问题
What is the purpose of taking multiple readings in Physics?
查看答案
答案
The purpose of taking multiple readings in Physics is to obtain an accurate measurement value.
闪卡 11
问题
Define a scalar quantity. (Extended Tier Only)
查看答案
答案
A scalar quantity is a quantity that has only magnitude.
闪卡 12
问题
What is a vector quantity? (Extended Tier Only)
查看答案
答案
A vector quantity is a quantity that has both magnitude and direction.
闪卡 13
问题
What is displacement? (Extended Tier Only)
查看答案
答案
The distance from a starting point.
闪卡 14
问题
True or False? Mass is a scalar quantity. (Extended Tier Only)
查看答案
答案
True. Mass is a scalar quantity as it has only magnitude.
闪卡 15
问题
True or False? Distance is a scalar quantity. (Extended Tier Only)
查看答案
答案
True. Distance is a scalar quantity.
闪卡 16
问题
How can you determine whether a quantity is a scalar or vector? (Extended Tier Only)
查看答案
答案
Determine if it has only magnitude (scalar) or magnitude and direction (vector).
闪卡 17
问题
Is 100 km due north a scalar or a vector quantity? (Extended Tier Only)
查看答案
答案
100 km due north is a vector quantity because it includes both a magnitude and a direction.
闪卡 18
问题
True or False? Energy is a scalar. (Extended Tier Only)
查看答案
答案
True Energy is a scalar.
闪卡 19
问题
Is temperature a scalar or a vector? (Extended Tier Only)
查看答案
答案
Temperature is a scalar.
闪卡 20
问题
Is electric field strength a scalar or a vector? (Extended Tier Only)
查看答案
答案
Electric field strength is a vector.
闪卡 21
问题
How are vectors represented? (Extended Tier Only)
查看答案
答案
Vectors are represented by an arrow where the arrowhead indicates direction and the length represents magnitude.
闪卡 22
问题
Define component vectors. (Extended Tier Only)
查看答案
答案
Component vectors are parts of a vector that act in specific directions, often indicated by subscripts.
闪卡 23
问题
State the equation to calculate the resultant vector using Pythagoras' Theorem. (Extended Tier Only)
查看答案
答案
Where:
闪卡 24
问题
What is the SOH-CAH-TOA mnemonic used for in trigonometry? (Extended Tier Only)
查看答案
答案
The SOH-CAH-TOA mnemonic in trigonometry is used to remember how to apply sine and cosine to resolve the sides of a triangle when calculating vectors.
闪卡 25
问题
How can you find the angle of the resultant vector? (Extended Tier Only)
查看答案
答案
Trigonometry can be used to find the angle of the resultant vector.
闪卡 26
问题
How can vectors be calculated graphically? (Extended Tier Only)
查看答案
答案
Vectors can be calculated graphically by carefully producing a scale drawing with all lengths and angles correct using a pencil, ruler and protractor.
闪卡 27
问题
Which theorem is essential for calculating the magnitude of vectors at right angles to each other? (Extended Tier Only)
查看答案
答案
Pythagoras' theorem is essential for calculating the magnitude of vectors at right angles to each other.
闪卡 28
问题
Define resultant vector. (Extended Tier Only)
查看答案
答案
A resultant vector is a single vector with the same effect as two or more vectors combined.
闪卡 29
问题
True or False? The graphical calculation method of resolving vectors requires an exact scale. (Extended Tier Only)
查看答案
答案
False. The graphical method doesn't require an exact scale.
闪卡 30
问题
What does the length of the vector arrow represent? (Extended Tier Only)
查看答案
答案
The length of the arrow represents the magnitude of the vector.