Direction
What force would act on a falling object?
air resistance and gravity
radiation
What affects gravity?
mass and distance
Which is the shortest wavelength?
purple
Name a way that an object accelerates.
1. slows down
2. speeds up
3. changes direction
What is the overall force acting on an object?
net force
What type of heat transfer occurs when a spoon in sitting IN hot tea?
conduction
What happens to magnetic poles and charges that are alike?
Which has the highest frequency?
purple
What is the difference between displacement and distance?
Distance is the total amount traveled distance is the shortest route from the start to end.
If an orange rolls off your lunch tray when you stop suddenly, what would explain this?
inertia of the orange
What heat transfer occurs when energy moves through fluids?
convection
According to Coulomb's Law, as two charges become father apart what happens to the force?
decreases
As wavelength increases, what happens to the freuqnecy?
decreases
Two teams are playing tug of war. Team one pulls with a force of 45 N to the right. Team two pulls with a force of 30 N to the left. What is the net force acting on the rope?
15 N right
If an astronaut travels farther from Earth, what happens to their weight?
It decreases
What is the energy of motion called?
kinetic energy
What sphere has all Earth's water?
hydrosphere
What happens to the frequency as the wavelength decreases?
increases
What part of the line is the car changing directions?
D
What resist changes in motion?
inertia
What type of energy is gasoline?
chemical energy
True/False
Photosynthesis in plants can remove carbon dioxide from the atmosphere.
True
Put the following waves IN ORDER from LEAST dangerous to MOST dangerous.
visible light
gamma rays
radio waves
radio waves
visible light
gamma rays