Science Data
Physics Data
Symbol
Term
Unit
F
Force
Newtons (N)
m
mass
Kilograms (Kg)
a
acceleration
Meters per second per second (ms-2)
V
velocity
Meters per second (ms-1)
s
displacement
meters (m)
t
time
Seconds (s)
V
Voltage (potential difference)
Volts (V)
I
Current
Amps (A)
R
Resistance
Ohms (Ω)
Chemistry Data
Symbol
Term
Unit
n
moles
moles (mol)
MM
Molar mass
Grams per mol (g mol-1)
m
mass
Grams (g)
c
concentration
Moles per litre (mol L-1)
V
volume
Litres (L)
ΔT
Change in Temperature
Kelvin (or Celsius) (K or oC)
c
Specific heat
Joules per gram per Kelvin (Jg-1K-1)
ΔH
Enthalpy (energy)
Joules (J)
Equations:
Equation in Symbols
Rearranged
Rearranged
V=s
t
F=ma
V=IR
n= m
MM
n=cV
ΔH = -mcΔT
Answer these questions in your notebook. Set them out as shown.
1. An electrical circuit has 3.67V, and a resistance of 4.3Ohms. What is the current that
is flowing through it?
2. A substance has a molar mass of 68.94gmol. How many moles of it do you have if
you have 5.9g?
3. What is the velocity of an object that travels 45m in 39s?
4. An object is pushed with a force of 30N, and it accelerates at a rate of 4.2ms -2. What
is the objects mass?
5. A scientist makes up a solution by placing 4.5 moles of a substance in a 250ml
volumetric flask. What is the substances concentration?
6. When a fuel is placed under 250g of water and burnt, it raises the temperature of
the water by 14oC. How much heat energy has the fuel released? (The specific heat
of water is 4.18J g-1 K-1.
7. What volume of water do I need to put 4.2moles of a substance in, if I want its
concentration to be 2molL-1?
8. What is the voltage that is required to obtain a current of 12amps if the resistance of
the circuit is 17 Ohms?
9. What mass of a substance with a molar mass of 112.93gmol-1 would you need if you
needed 5 moles?
10. How far does an object travelling at 5.7ms-1 get if it travels for 30 seconds?
11. How fast will a 6.9kg object accelerate if it is pushed with a force of 13 Newtons?
12. If a fuel released 50J of heat energy into 200ml of water, how much would the
temperature increase? (The specific heat of water is 4.18J g-1 K-1.
13. How many grams of a 44gmol-1 substance would I need to put in a 200ml volumetric
flask in order to obtain a concentration of 2mol L-1?