1.Megan throws a paper airplane. How will gravity make the airplane move? A. In a straight line
B. Up toward the sky
C. back toward Megan
D. down toward the ground
Two shopping carts are pushed with the same force. One has a lower speed than the other. Which is an example that could explain this reaction?
A. One shopping cart is full the other is empty.
B. The person pushing one cart is bigger than the other.
C. One is pink.
D. One has bigger wheels.
10.Which of the following is NOT an example of friction as a helpful force?
A. Using your hand to wave hello to a friend
B. Using a cloth to clean a pair of glasses
C. Using a marker to draw a picture on paper
D. Using a scrub brush to wash dishes
11 Friction is a force that acts in the direction of the intended motion of an object.
A. Same
B. Parallel
C. Opposite
D. Northern
12.In what way can friction be reduced?
A. Using a wheel
B. Using oil
C. Using a ball
D. All of the above
13.TRUE OR FALSE: Different types of surfaces create different amounts of friction.
True
False
14.A bowling ball on a bowling lane is an example of what type of friction?
A. Sliding Friction
B. Rolling Friction
C. Fluid Friction
D. Static Friction
15.A child sliding down the slide at a park is an example of what type of friction?
A. Sliding Friction
B. Rolling Friction
C. Fluid Friction
D. Static Friction
16.A block sitting still on the side of a ramp is an example of what type of friction?
A. Sliding Friction
B. Rolling Friction
C. Fluid Friction
D. Static Friction
17.Air resistance on a flying airplane is an example of what type of friction?
A. Sliding Friction
B. Rolling Friction
C. Fluid Friction
D. Static Friction
18.In what way does friction help us in our everyday life?
A. Brakes on a car
B. Standing up
C. Climbing a hill
D. All of the above
19.How much gravity an object has depends on its .
A. Weight
B. Mass
C. Speed
D. Height
20.Which of the following has the strongest gravitational pull?
A. A bowling ball
B. A car
C. The Earth
D. The Sun
21.When will gravity be the strongest?
A. The further away you are from an object
B. The closer you are to an object
C. All of the above
22. True or False: Gravity helps the Earth to stay in orbit around the Sun.
TRUE
FALSE
23.What natural phenomena occurs on Earth due to the gravity of the Moon?
A. Earthquakes
B. Thunder storms
C. Ocean tides
D. Volcanic eruptions
24.Give a real life example of MAGNETIC FORCE.
25.Give a real life example of ELECTRICAL FORCE.
26.Give a real life example of NUCLEAR FORCE.
27.Give a real life example of FRICTIONAL FORCE.
28.Give a real life example of GRAVITATIONAL FORCE.

Question 1 what is amperage? is the rate of doing work. is the rate of flow of protons in electric current. represents the amount of pressure behind electron flow. is the rate of flow of electrons in electric current. 2 points question 2 what is voltage? is the rate of doing power. represents the amount of pressure behind electron flow. is the rate of doing work. is the rate of flow of electrons in electric current. 2 points question 3 what is power? is the rate of flow of protons in electric current. is the rate of flow of electrons in electric current. is the rate of doing work. represents the amount of pressure behind electron flow. 2 points question 4 if we multiply volts times amps we get what? power circuit work current 2 points question 5 what are two ways alternating currents are similiar? in both ac and dc electrons flow in the same pattern. in both ac and dc, the flow of electrons changes directions back and forth. both ac and dc are only possible in certain materials with atoms that will allow electron flow. both ac and dc involve the flow of electrons. 4 points question 6 how does the flow of electrons flow in an alternating current? the flow of electrons is always slower in an alternating current than within a direct current. the flow of electrons is not constant and forward; it changes direction back and forth. electrons flow from from a higher affinity to that of a lower affinity. electron flow is constant and only in a forward direction. 2 points question 7 what is the flow like in a direct current? the flow of electrons is not constant and forward; it changes direction back and forth. the flow of electrons is constant and only in a forward direction. the flow of electrons go from a higher affinity to a lower affinity. the flow of electrons are always faster in a direct current. 2 points question 8 how is an electric current able to flow? electrons flow from the higher affinity to lower affinity and electrical current is generated. protons flow from the higher affinity to lower affinity and electrical current is generated. the movement of protons from one atom to another leads to an electric charge. the movement of electrons from one atom to another atom in a line results in a flow of electric current. 2 points question 9 how do electrons move from the two different types of metal in a battery? protons flow from the metal with the lower affinity to the metal with higher affinity and electrical current is generated. electrons flow from the metal with the lower affinity to the metal with higher affinity and electrical current is generated. electrons flow from the metal with the higher affinity to the metal with lower affinity and electrical current is generated. protons flow from the metal with the higher affinity to the metal with lower affinity and electrical current is generated.