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WorksheetsPaper 1 Physics
Total questions: 20
Worksheet time: 10mins
What name is given to a material which allows thermal energy to pass through it easily?
Thermal insulator
Thermal conductor
Equation for work done.
Work done = Force / time
Work done =Force x distance
Work done = Force / distance
Equation for power.
Power = Energy transferred x time
Power = Energy transferred/distance
Power = Energy transferred/time
Units for power.
Joules (J)
Watts (W)
Units for force
Newton (N)
Joules (J)
Which equation describes Hooke's Law?
F = k/e
Force (N) = spring constant (N/m) / extension (m)
F = ke
Force (N) = spring constant (N/m) x extension (m)
What charge will an object have if it gains electrons?
Negative
Positive
What will happen if two objects with similar charges are brought together?
Attract
Repel
What is the atomic number?
Number of protons AND neutrons.
Number of protons
A charged atom (lost or gained electrons)
Atoms of the same element with the SAME number of protons but a DIFFERENT number of neutrons.
What is an "ion"?
Number of protons AND neutrons.
Number of protons
A charged atom (lost or gained electrons)
Atoms of the same element with the SAME number of protons but a DIFFERENT number of neutrons.
What is a beta particle?
A negative electron
A positive electron
Define "half life"
Exposing an object to nuclear radiation. The irradiated object does not become radioactive.
The unwanted presence of radioactive atoms on other materials
The time it takes for the number of unstable nuclei of the isotope in a sample to halve
What kind of radiation is used to look at internal organs?
Alpha
Beta
Gamma
What type of radiation is stopped by skin
Gamma
Beta
Alpha
State the equation for density
ρ =m x v
Density (kg/m3) = mass (kg) x volume (m3)
ρ =m/v
Density (kg/m3) = mass (kg) / volume (m3)
ρ = v/m
Density (kg/m3) = volume (m3) / mass (kg)
Describe the particle model of liquids
Particles placed randomly, none or very few touching.
Particles randomly placed, almost all particles touching.
Particles all touching (bonded) in rows
Define "internal energy"
Amount of energy required to raise the temperature of one kilogram of the substance by one degree Celsius.
The energy needed for a substance to change state
Energy stored inside a system by the particles
Define "latent heat"
Amount of energy required to raise the temperature of one kilogram of the substance by one degree Celsius.
The energy needed for a substance to change state
Energy stored inside a system by the particles
State the equation for change in thermal energy
∆ E = m /c /∆ θ
Change in energy (J) = mass (kg) / specific heat capacity (J/Kg°C) / change in temperature (°C)
∆ E = mc ∆ θ
Change in energy (J) = mass (kg) x specific heat capacity (J/Kg°C) x change in temperature (°C)
State two factors that will influence gas pressure
Size
Temperature
Mass
Volume
