force and motion end of the year review 4

Luis is using toy cars to investigate speed. He is changing the length and shape of the track to see the effects on speed. What change could he make to the investigation to take the car go faster?

• make the track as rough as possible

• make the end of the track higher than the beginning of the track

• make the beginning of the track higher than the end of the track

When a student pushes each toy car with an equal amount of force on the same level surface, which car will travel the greatest distance?

• 1

• 2

• 3

• 4

Look at the chart. Four students rolled their car across the floor made of different surfaces. Based on the data, which student used a rough surface?

• Alex

• Alicia

• Brody

• Lucy

Two balls are rolling down ramps. What force causes the balls to continue on their paths the ramp?

• heat

• friction

• gravity

• magnetism

You are given 4 toy trucks with different masses. Truck 1 weights 25 g; truck 2 weighs 50 g; truck 3 weighs 75 g; truck 4 weighs 100g. You release each truck 1 at a time down a ramp. Which truck would reach the bottom first?

• truck 1

• truck 2

• truck 3

• truck 4

If these 4 balls are dropped from the same height, which ball would land first

• ball 1

• ball 2

• ball 3

• ball 4

A student uses a rubber band to launch the four objects shown in the table. Which object will most likely move the fastest when launched?

• paper clip

• piece of paper

• eraser

• rubber ball

Four solid balls each with a different mass, are moving at the same speed. Which ball would require the most force to stop it motion?

• ball with a mass of 5 kg

• ball with a mass of 10kg

• ball with a mass of 15kg

• ball with a mass of 20 kg

A sky diver jumps out of an airplane. The force of gravity is pulling him down. What causes him to go up when the parachute opens?

• air resistance

• changing mass

• a steady velocity

• acceleration due to gravity

Identify kinetic energy (you can choose more than 1)

• standing bowling pins

• swinging a baseball bat

• dominoes falling

• an apple hanging on a tree

• sitting at the top of a slide