easy-watermark domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/u223937191/domains/scienceworksheets.co.uk/public_html/wp-includes/functions.php on line 6170Practice Questions
1. Define the term force
A force is a push or pull that acts on an object due to the interaction with another object.
2. How can forces affect an object?
A force can change the shape, speed or direction of an object.Â
3. Define the term contact force
Contact forces where the objects are physically touching
4. Define the term non contact force
Non contact forces where the objects are not physically touching
5. Give 3 examples of contact forces
Friction, air resistance, upthrust, tension, reaction force and compression
6. Give 3 examples of non contact forces, excluding weight
Electrostatic, magnetic and gravitational force
Absorption and Emission of EM Radiation
JJ Thomson and Plum pudding model
Ernest Rutherford and the Nuclear Model
Niels Bohr changing the Nuclear Model
Discovering the Proton and Neutron
Measuring radiation from radioactivity
Radiation types and properties
Random nature of radioactive decay
Radioactive contamination or irradiation
Hazards of contamination and irradiation
Studies on the effects of radiation on humans