SCI-4 Kaechele_Dix_4.2 force,energy,motion Test Exam not valid for Paper Pencil Test Sessions

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1 SCI-4 Kaechele_Dix_4.2 force,energy,motion Test Exam not valid for Paper Pencil Test Sessions [Exam ID:21HKN0 1 Speed is a measure of A motion B force C science D solid

2 2 A boy helped his neighbors pack their moving van. Which box would be the most difficult for him to carry? A B C D 3 A ball is thrown up and pauses briefly in midair. What force causes it to fall? A Friction B Gravity C Electricity D Magnets

3 4 Energy that may happen is A kinetic energy B friction C moving D potential energy 5 All the following would be changes in motion EXCEPT A starting from a stopped position B going in a different direction C moving at a constant speed D slowing down 6 Two moving boats are photographed from above at 3:00 p.m. and 3:15 p.m. Which statement correctly compares their motion? A They are traveling in opposite directions at equal speeds. B They are traveling in the same direction at equal speeds. C They are traveling in the same direction, and boat 2 has a greater speed. D They are traveling in opposite directions, and boat 2 has a slower speed.

4 7 In which direction will the ball most likely go after it hits the wall? A C B D 8 The box would be easier to move if the surface of the ramp was smoother because there would be less A gravity pulling on the box B friction opposing the box C mass in the box D distance to push the box 9 Speed is a measure of A potential energy B motion C strength D direction E friction

5 10 All moving objects have A electrical force B frictional force C potential energy D kinetic energy 11 Imagine this cyclist resting at the top of a hill. He is facing the bottom of the hill, so he has A friction B motion C kinetic energy D potential energy 12 Which of the following would NOT be an example of potential energy? A A ball rolling down a hill B A kitten getting ready to jump out of a tree C A skier at the top of a ski slope D A child at the top of a slide

6 13 Directions: Type your answer in the box. This graph shows how far a student traveled during each hour of a trip. After which completed hour of travel did the student's speed increase the most? After hour 3 14 The direction of an object's motion can be described with all of the following words EXCEPT A down B forward C right D energy

7 15 Directions: Click and drag the text to the correct box. A student conducted an experiment where he tried to knock down a bowling pin using different types of balls. The designs and results are shown in each picture. Match the type of ball with the results. light Styrofoam ball baseball heavy steel ball 16 A student made a track for a toy sled using 4 different materials. At which section of the track is friction most likely to cause the greatest resistance to the motion of the toy sled? A 1 B 2 C 3 D 4

8 17 What causes a change in motion? A Force B Potential energy C Position D Kinetic energy 18 What kind of energy does an apple hanging on a tree limb have? A Potential energy B Motion C Friction D Kinetic energy 19 A group of stuffed animals were sitting on a shelf. Which animal will take the least amount of force to blow off the shelf? A Bear B Elephant C Pig D Chick 20 Directions: Click on each answer you wish to select. You must select all of the correct answers. Which of the following examples show kinetic energy? A train moving along the tracks A baseball after it is thrown A tennis shoe falling down the stairs A skier standing at the top of a mountain A person running on the sidewalk A candle sitting on a shelf 21 A family went grocery shopping and split the shopping list to make the shopping time go faster. Each person pushed their item in a shopping cart. Who had to use the least amount of force to push their cart? A A girl went to get a box of cereal. B A boy went to get a gallon of milk. C Dad went to get a case of bottled water. D Mom went to get a large bag of dog food.

9 22 If an equal force was exerted on boxes of various weights, which box would move the farthest? A A twenty pound box B A fifty pound box C A ten pound box D A thirty pound box 23 Which of these has kinetic energy? A B C D 24 Which example best shows friction? A A snow drift starts to fall down a mountain picking up more snow along the way. B Toddlers pedal fast in a tricycle race to see who will be the winner. C The walking club slows down at the end of their walk to stretch. D For the first few seconds, the parachuter gains speed after jumping out of a plane. E The brakes on the car heated up as they were pushed and the car slowed down.

10 25 According to the graph, which two surfaces have the least friction? A Glass and wood B Glass and tile C Wood and tile D Carpet and glass 26 Useful friction is created by the A curved handlebars B brakes C spokes D gears 27 A student rolls a ball on the ground. Which of these causes the ball to slow down and then stop? A The motion of the ball B A magnetic field C The speed of the ball D Friction from the ground

11 28 Directions: Click and drag the text to the correct box. Label the pictures based on whether or not they have kinetic energy. dog without kinetic energy dog with kinetic energy toy with kinetic energy toy without kinetic energy 29 Directions: Click on each answer you want to select. You must select all the correct answers. Which of the following statements about friction are true? A ball has less friction on a rough surface than on a smooth surface. A sled goes fast on a snowy hill because snow has less friction than grass. Brakes on a car work by adding friction to the wheels. Friction causes hands to feel cold when they are rubbed together. 30 A boy rubs wax on his snowboard, so it will go down the mountain faster. Which science fact is he proving? A Water freezes if the temperature is below 32 F. B Smooth, slippery items have less friction. C Smooth, slippery items have more friction. D Snow melts when the temperature is above 32 F.