What type of energy transformation occurs in an iron?, Kinetic to sound energy, Electrical to thermal energy, Energy transformation is -------------------------------- --., the force applied, the process when energy converts from one form to another, When you ---------- , the first type of energy you take in your body is chemical energy., eat toast, sleep, Which household appliance converts electrical energy primarily into thermal energy?, Toaster, Blender, In a --------- , a continuous change occurs between kinetic energy and gravitational potential energy., spring, pendulum, ------------ can neither be created nor destroyed. but it changes from one form to another., Energy, Mass, What happens to the potential energy of a pendulum as it swings upward?, It increases, It decreases, Your body converts chemical energy into ----------- energy when you walk upstairs., sound, kinetic, A ----------- is any interaction that pushes or pulls an object., force, velocity, What is a place or object used for comparison to determine whether something is in motion?, A reference point, A type of force, -------------is a contact force that two surfaces exert on each other when they rub against eachother other, Friction, Acceleration, What is gravity?, A non-contact force of magnet, A force that pulls objects towards each other as a result of their masses, Magnetism is a(n) ----------------- force., contact, non-contact, The combination of all forces acting on an object is called ------------- --., net force, fusion, Balanced forces will not change an object’s motion., True, False, The SI unit of --------------------------- s m/s2 ., acceleration, speed, The ------------- at which an object travels in a given direction is called velocity., speed, force, Slope is the -------------------- on the graph., angle of the line, distance between points, A motorist took 5 hours to travel 50 kilometers. What was his speed in km per hour?, 2 km/h, 10 km/h, From the units of measuring, ----------------- is mile per hour., speed, force, What is inertia?, Change in position relative to an object, Resistance to change in motion, A What is the net force on a 5 kg skateboard accelerating at a rate of 4 m/s2?, 20 N, 10 N, Newton is the -------------- --., unit of measuring the speed, unit of measuring the force, The smaller the mass of an object, the ---------------- its inertia, less, more, ----------------- friction happens when an object rolls across a surface., Rolling, Fluid, As distance increases, gravitational force decreases., True, False, -------------------- is a measure of the amount of matter in the object., Velocity, Mass, Static friction acts on objects when they are resting on surface as when ---------------------- --., you rub your hands, you push a desk and it doesn’t move, What is the term used to describe a change in position when compared to another object?, Motion, force , A policeman took 2 hours to travel 100 miles. What was his speed?, 50 mile per hour, 60 mile per hour.

grade 8

by
Print
Embed

Leaderboard

Visual style

Options

Switch template

Continue editing: ?